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All Seasons

Season 1

  • S01E01 The Mickey Farmer Case

    • July 1, 1957
    • CBS

    Diamond promises a dying gangster that he will take care of the gangster's girlfriend, unaware that the promise will endanger his life.

  • S01E02 Custody

    • July 8, 1957
    • CBS

    A woman in the hospital hires Diamond to trail her ex-husband, who she believes has obtained custody of their daughter to use as cover for his shady business practices.

  • S01E03 Escape from Oak Lane

    • July 15, 1957
    • CBS

    A man hires Diamond to watch over his frightened wife while he is out of town, but then Diamond is approached by a pair of doctors from a mental institution who claim she is an escaped patient.

  • S01E04 The Homicide Habit

    • July 22, 1957
    • CBS

    Diamond sets out to con a recently widowed woman and her lover into believing that he witnessed them kill her late husband so that they could collect the insurance money.

  • S01E05 Picture of Fear

    • July 29, 1957
    • CBS

    While on holiday in the mountains Diamond befriends a young woman who is being pursued by thugs who believe that she has taken some incriminating photos.

  • S01E06 Hit and Run

    • August 5, 1957
    • CBS

    Diamond finds himself facing off against the mob when is hired by a woman to prove that her fiancee is innocent of killing a man in a hit and run auto accident.

  • S01E07 The Big Score

    • August 12, 1957
    • CBS

    Diamond poses as a rich Canadian and infiltrates a gambling racket in order to learn the truth about a businessman's claims that he witnessed a murder.

  • S01E08 The Chess Player

    • August 19, 1957
    • CBS

    Diamond is hired by a woman to become a bodyguard to her husband, without him knowing it. He is a businessman who has received several threats against his life which he refuses to take seriously.

  • S01E09 The Torch Carriers

    • August 26, 1957
    • CBS

    Diamond unravels a story of unrequited love and revenge while tracking down a fugitive gangster who is in the possession of a valuable stolen necklace.

  • S01E10 The Pete Rocco Case (a.k.a. Prison Break)

    • September 9, 1957
    • CBS

    Diamond plays a game of cat and mouse with an escaped convict who bears a grudge against Diamond for bringing him to justice.

  • S01E11 Venus of Park Avenue

    • September 16, 1957
    • CBS

    Diamond is hired to verify the authenticity of an ancient Greek statue, which is suspected of being fake when it is offered for sale at a figure far below its true value.

  • S01E12 The Merry-Go-Round Case

    • September 23, 1957
    • CBS

    Diamond attempts to convince an old war buddy who has turned to a life of crime to give himself up to the authorities.

Season 2

  • S02E01 The Space Society

    • January 2, 1958
    • CBS

    A man hires Diamond to investigate an outer space society which he suspects is out to bilk his rich uncle since they have talked him into leaving the society $100,000 in his will.

  • S02E02 The Dark Horse (a.k.a. The Allison Garvey Case)

    • January 9, 1958
    • CBS

    Diamond is hired to protect a lady politician whose supporters fear she may be kidnapped by the opposition.

  • S02E03 The Payoff

    • January 16, 1958
    • CBS

    Diamond is hired to track down a gang of safe crackers and recover the money that they stole.

  • S02E04 Double Jeopardy

    • January 23, 1958
    • CBS

    A man convicted of a jewel theft years earlier still claims to be innocent even though the jewels start to show up on the black market as soon as he is released from prison.

  • S02E05 Arson

    • January 30, 1958
    • CBS

    Diamond is hired to investigate a fire in a fur shop which killed an accountant who was working there.

  • S02E06 The Ed Church Case

    • February 6, 1958
    • CBS

    A veteran journalist and a recovering alcoholic join forces in order to get a story on a protection racket.

  • S02E07 Chinese Honeymoon (a.k.a. Trouble in Chinatown)

    • February 13, 1958
    • CBS

    Diamond uncovers a protection racket when he decides to learn why a pair of his Chinese friends unexpectedly call off their upcoming wedding.

  • S02E08 Rodeo

    • February 20, 1958
    • CBS

    A cowboy performing in a Madison Square garden rodeo comes to Diamond for help after he discovers his saddle strap cut and suspects that someone is trying to kill him.

  • S02E09 A Cup of Black Coffee

    • February 27, 1958
    • CBS

    While taking a break from an all night drive at a roadside cafe, Diamond meets a woman who gives him a look convincing him she is afraid of something.

  • S02E10 The George Dale Case

    • March 6, 1958
    • CBS

    Diamond is beaten and rendered unconscious by a man he suspects is an art thief. When he recovers he discovers that a beautiful woman has subdued his attacker.

  • S02E11 Juvenile Jacket

    • March 13, 1958
    • CBS

    Diamond is hired by a woman to clear her son of charges of murder, since he is a member of a gang which robbed a liquor store and killed the sales clerk.

  • S02E12 Pension Plan

    • March 27, 1958
    • CBS

    A jewelry store owner comes to Diamond for help when one of his employees refuses to return gems he had been assigned to clean unless he is given a large cash stipend.

  • S02E13 Short Haul

    • April 10, 1958
    • CBS

    Diamond goes under cover as a truck driver in order to investigate a truck hijacking in which the driver was killed.

  • S02E14 Another Man's Poison

    • April 17, 1958
    • CBS

    Diamond sets out to find the man who is trying to kill him and who failed in his last attempt, leaving an innocent bystander dead.

  • S02E15 The Purple Penguin

    • April 24, 1958
    • CBS

    Diamond fails in his efforts to protect a shady night club owner who believes that someone is out to kill him.

  • S02E16 Lost Testament

    • May 1, 1958
    • CBS

    While investigating the death of an investment counselor, Diamond learns that a letter has recently been stolen from the deceased's attorney.

  • S02E17 The Percentage Takers

    • May 8, 1958
    • CBS

    Diamond is hired by a singer who finds himself being threatened by extortionists.

  • S02E18 Widow's Walk

    • May 22, 1958
    • CBS

    Diamond and his client are kidnapped by gangsters who threaten to kill both of them unless Diamond reveals the location of valuable paintings from another case.

  • S02E19 The Bungalow Murder

    • May 29, 1958
    • CBS

    Diamond is called upon to investigate the murder of a film producer and upon arriving at the scene of the crime learns that the police have not been notified of the man's death.

  • S02E20 One Foot in the Grave

    • June 12, 1958
    • CBS

    After a policeman friend of Diamond's is killed while on patrol, Diamond decides to do an investigation of his own to insure that the killer is brought to justice.

  • S02E21 Snow Queen

    • June 26, 1958
    • CBS

    Diamond uncovers a narcotics smuggling operation while investigating the murder of an art restorer who was killed in his workshop.

Season 3

  • S03E01 The Sport (a.k.a. The Larry Forsythe Case)

    • February 15, 1959
    • CBS

    Diamond moves to Los Angles where he begins to date Karen after she hires him to find her boyfriend's murderer. A woman hires him to find her playboy son who has gone missing.

  • S03E02 Pack Rat

    • February 22, 1959
    • CBS

    An old man dies alone in his shack on the beach and $84,000 is found among his pile of junk. A hopeful heir hires Richard Diamond to find out if the man is his second cousin. Diamond uncovers evidence that the old man was murdered.

  • S03E03 Body of the Crime

    • March 1, 1959
    • CBS

    A mobster wanted by the law fears that he is going to be assassinated and asks Diamond to negotiate his surrender to the police.

  • S03E04 Soft Touch (a.k.a. The Revolution)

    • March 8, 1959
    • CBS

    A couple from South America hire Diamond to find a political refugee from their country who is hiding in the U.S.

  • S03E05 Boomerang Bait

    • March 15, 1959
    • CBS

    An attractive young woman pleads with Diamond to investigate the murder of a fiananceer. Diamond later learns that her father is the police detective assigned to solve the case.

  • S03E06 Matador Murder (a.k.a. Mexican Art Swindle)

    • March 22, 1959
    • CBS

    Diamond heads to Mexico in search of a missing art dealer.

  • S03E07 Murder at the Mansion

    • March 29, 1959
    • CBS

    Diamond winds up in the middle of a deadly conspiracy when he agrees to help a wealthy young man find his missing bride.

  • S03E08 Marineland Mystery

    • April 5, 1959
    • CBS

    An antique dealer hires Diamond to find an Oriental cigarette box and his employee who disappeared while delivering the box.

  • S03E09 Charity Affair

    • April 12, 1959
    • CBS

    A masked gunman steals the box office receipts of a charity jazz festival which Diamond is attending.

  • S03E10 Two for Paradise

    • April 19, 1959
    • CBS

    After inheriting half of a citrus packing plant, a pair of brothers hire Diamond to investigate a young woman they suspect is a golddigger, who has been romancing their late father's partner.

  • S03E11 Crown of Silla

    • May 3, 1959
    • CBS

    An art dealer asks Diamond to make a clandestine investigation into the disappearance of a valuable crown which vanished from a safe on board a yacht.

  • S03E12 Jukebox

    • May 10, 1959
    • CBS

    A jukebox operator asks Diamond for help when he is threatened by racketeers who want him to use their records exclusively.

  • S03E13 Echo of Laughter

    • May 17, 1959
    • CBS

    Diamond learns that a friend of his, a TV personality, is undergoing marital problems and that his wife may be out to kill him.

  • S03E14 The Limping Man

    • May 24, 1959
    • CBS

    A terrified woman calls Diamond for help after her life is threatened, but by the time Diamond arrives to meet with her she has disappeared.

  • S03E15 The Hideout

    • May 31, 1959
    • CBS

    A nun asks Diamond to locate a missing young boy who is a member of a Dixieland band she has organized.

  • S03E16 Rough Cut

    • June 7, 1959
    • CBS

    Diamond goes undercover as a casino worker in order to find a priceless jewel that has been stolen.

  • S03E17 Family Affair

    • June 14, 1959
    • CBS

    Diamond discovers some unpleasant facts about a young woman who was murdered after he talks to her roommate, a dance hall hostess.

  • S03E18 Design for Murder

    • June 21, 1959
    • CBS

    An old flame of Diamond's comes to him hoping to hire him to find out who is attempting to blackmail her.

Season 4

  • S04E01 The Hoodlum

    • October 5, 1959
    • CBS

    A racketeer's bookkeeper gets Diamond involved in a blackmail scheme against his boss, when he asks him to find a book and gives him only one hour to do so.

  • S04E02 Act of Grace

    • October 12, 1959
    • CBS

    An acquaintance of Diamond's is murdered. At his grave at a potter's field, Diamond sees a wealthy old woman laying flowers at some of the unmarked graves. Diamond tries to find the connection between her and his down-on-his-luck friend.

  • S04E03 The Bookie

    • October 19, 1959
    • CBS

    A bookie decides to get rid of Lt. Kile, whose efforts to put a stop to the bookie's operation have begun to annoy him.

  • S04E04 The Client

    • October 26, 1959
    • CBS

    A financier hires Diamond to search for his partner who has gone missing in Mexico.

  • S04E05 The Runaway

    • November 2, 1959
    • CBS

    While briefly stopping in San Francisco, Diamond finds himself the target of a gunman.

  • S04E06 No Laughing Matter

    • November 9, 1959
    • CBS

    Diamond finds himself in a deserted amusement park on the trail of a desperate fugitive murderer.

  • S04E07 The Messenger

    • November 16, 1959
    • CBS

    Diamond is hired to deliver a note to a bank teller and is somewhat surprised when the teller screams after she reads the note.

  • S04E08 The Counselor

    • November 23, 1959
    • CBS

    A marriage counselor whose life has been threatened hires Diamond to protect him.

  • S04E09 The Image

    • November 30, 1959
    • CBS

    An old nemesis of Diamond's on the police force has Diamond arrested on murder charges after the girlfriend of an escaped convict is found murdered.

  • S04E10 The Adjuster

    • December 7, 1959
    • CBS

    Diamond receives a tip that a man who has been presumed dead for over a year is still alive.

  • S04E11 Marked for Murder

    • December 14, 1959
    • CBS

    Diamond finds himself in a lonely hearts club when he is hired to investigate the confusing circumstances surrounding a robbery and murder.

  • S04E12 The Caller

    • December 21, 1959
    • CBS

    Diamond receives a mysterious telephone call which informs him that he will die at a specific time later that evening.

  • S04E13 One Dead Cat

    • December 28, 1959
    • CBS

    A night club singer hires Diamond to protect her and her band leader from a disgruntled pianist who once played in their band.

  • S04E14 Dead to the World

    • January 11, 1960
    • CBS

    A friend of Sam's wants Diamond to prove that her uncle's death was murder.

  • S04E15 Seven Swords

    • January 18, 1960
    • CBS

    Summoned to a theater by a phone call, Diamond watches a magician thrust seven swords into a box containing his assistant. Is this the dangerous situation he was called to deal with?

  • S04E16 The Fine Art of Murder

    • January 25, 1960
    • CBS

    An actress hires Diamond after she learns that a valuable painting which she purchased is a fake.

  • S04E17 The Popskull

    • June 28, 1960
    • CBS

    A reputable bar owner is being forced to sell rotgut whiskey until the owner's wife hires Diamond to intervene.

  • S04E18 And Whose Little Baby Are You?

    • July 5, 1960
    • CBS

    After returning to his apartment with a date, Diamond finds an infant abandoned on his couch.

  • S04E19 Fallen Star

    • July 19, 1960
    • CBS

    A journalist hires Diamond to look into the death of a singer who fell to her death, which he suspects was a murder but that the police have ruled a suicide.

  • S04E20 Coat of Arms

    • August 2, 1960
    • CBS

    A landlady finds one of her tenants dead in his room and shortly afterwards is greeted by a gun-wielding stranger looking for the man.

  • S04E21 Double Trouble

    • August 9, 1960
    • CBS

    A diplomat who does not want the police to be involved, asks Diamond to find his missing fiancee.

  • S04E22 The Lovely Fraud

    • August 16, 1960
    • CBS

    Shortly after a dancer takes out a large insurance policy on her legs, she gets injured by a hit and run driver and is forced to collect on the policy.

  • S04E23 Accent on Murder

    • August 23, 1960
    • CBS

    A woman is killed after hiring Diamond to protect 'a young lady from France' who turns out to be a poodle.

  • S04E24 East of Danger

    • August 30, 1960
    • CBS

    A woman hires Diamond when her father is attacked after he finds heroin hidden in his antique store warehouse.

  • S04E25 Running Scared

    • September 6, 1960
    • CBS

    A man is concerned about his daughter, whom he feels has been spending too much time brooding over her husband's death.

  • S04E26 The Mouse

    • September 13, 1960
    • CBS

    A French woman gets threats from a supposedly dead war criminal who knows the whereabouts of a fortune in smuggled diamonds.