Stanley nearly severs diplomatic relations between the US and Italy when, during the course of, "The New York International Children's Folk-Song Festival" Stanley substitutes his own choice of Italian children for those chosen by the committee.
Old army buddies of Stanley turn up as guests at the hotel. They invite Stanley to their room for a drink and begin reminiscing about their escapades in the Army. Stanley tells them about one of their pranks that backfired.
Stanley has to take inventory of his cigar stand on a night when he and Celia have tickets for a television show. Stanley tells Celia to go by herself. Stanley watches the show and has a fit of jealousy when Celia falls swooning for the television crooner. All ends well as Stanley rationalizes away her behavior.
Stanley invades Madison Avenue's most exclusive men's shop to purchase a fitting wardrobe. He returns to his newsstand in sartorial splendor and impresses almost everyone, until his irate boss orders him back to his casual dress. The reason: Stanley made the mistake of wearing the exact same clothes as his boss!
At Celia's suggestion, Stanly decides to diet. Mrs. Peck, his mother, refuses to cooperate provoking Stanley to move into a one-room bachelor apartment, which turns out to be very lonely and not at all pleasant. Stanley gladly returns home after his mother asks his to supervise painters.
Stanley is late for a date with Celia when he is held at gunpoint by a woman who just robbed the hotel cashier. To make matters worse, Celia- dripping wet from waiting for Stanley in the rain - sees Stanley and the blond woman in the hotel flower shop during her getaway. Stanley fails miserably trying to explain the incident to Celia. Finally, Celia realizes he is telling the truth when police
After several provoking incidents, Stanley decides to be more aggressive in life. He tries out his mew personality on his manager and almost looses his job. "Don't try to be something you aren't" is the moral of this episode.
In this episode Celia's French Pen Pal, arrives in this country and takes Celia to lunch causing Stanley to suffer all sorts of jealousy pangs. These are intensified when he eavesdrops from the next booth and hears what he thinks are protestations of mad love - when actually Francois is only being coached by Celia in English before he asks the girl he loves to marry him.
Stanley makes his plans for New Year's Eve - a quiet evening at home with Celia and one glass of champagne at midnight. The only trouble is, he neglects to tell Celia about this and she has already bought tickets for a big dance and a new dress for the occasion. A terrific argument ensues-climaxed by Stanley tearing up the tickets. The misunderstanding is resolved by the staging of a mock trial.
Tonight being Christmas Eve, Stanley suffers some last-minute apprehensions as to the suitability of his gif for Celia - an old-fashioned music box.
Stanley nearly forgoes the traditional midnight kiss on New Year's Eve when he becomes separated from Celia while on their way to a party. After many frantic phone calls which just miss each other, Stanley and Celia re-united in the nick of time.
In and effort to impress Celia and her friends, Stanley pretends that he is on very friendly terms with numerous celebrities who do business at his cigar stand. His bluff is called when Celia and her friends appear at the hotel to watch him lunch with one of his "friends", a prominent movie star. Stanley cannot back down and falls into his own trap.
Mr. Phillips, the Sussex Fenton Manager, issues an unprecedented invitation to Stanley for lunch at his club. Turns out he has an ulterior motive: to have our hero deliver a theatre ticket to the Hotel's girl florist. The location of her seat? Next to Mr. Phillip's seat.
Stanley finds himself to be the last bachelor at a bachelor party and imagines that his buddies and Celia are slowly forcing him into marriage. A visit to a married friend's home gives Celia and Stanley a rather startling picture of married life, and they decide the best course is to remain "boyfriend" and "girlfriend."
Stanley becomes involved in a rather precarious situation when he breaks a date with Celia to go to the fights by telling her a rather large fib. As luck would have it he meets one of her friends at the fight - however, he persuades the friend not to mention the incident to Celia. Of course the next day they both act so suspicious that Celia draws her own conclusion.
Tonight Stanley is made the star of the annual Hotel Sussex-Fenton "Follies". Stanley attempts to live up to the importance of his position - much to the distress of Celia and his other friends. He is brought back to earth sharply when another boy steals the show with his one song - although everyone agrees that Stanley, too, does a very good job.
Pride keeps a lover's quarrel smoldering as Stanley and Celia find that from small bickering grows mighty arguments. Stanley however can't bear the suffering and devises an approach to the spat so that neither losses face.