Rhonda Stapley was a student when she was attacked by one of America's most infamous killers - Ted Bundy. She's one of the few people who survived to recount her story of being attacked by him.
Art student Mo Lea moved from Liverpool to Leeds to start university. Her dream became a nightmare when she was attacked by the Yorkshire Ripper.
Cindy Brown was married to Bobby Joe Long for five years. She was physically and emotionally battered by her husband, who went on to kill 10 women.
Delia Balmer began a relationship with John Sweeney, unaware that he was a killer. Three and a half years later, he had Delia lined up as his next victim.
When Tony Antonucci took up an apprenticeship with local contractor John Wayne Gacy, he had no idea that his new boss was an active serial killer
In 2006, the bodies of five sex workers were found in Ipswich. Jade Reynolds worked in the red-light district and discovered the killer was a client
In 1979, US army medic Billy Joe Capshaw was stationed in Germany. He had no idea that his roommate was notorious serial killer Jeffrey Dahmer.
Jane Carson Sadler got out of bed to investigate a noise in her home. Downstairs, the Golden State Killer was lying in wait. She survived an attack from the man who murdered 13 people.
When Ryan Edwards welcomed a new neighbour to the community, he had no idea he was inviting a murderer into his life. Serial killer Stephen Port would go on to murder four young men.
David McVicker was unaware he had climbed into the van of murderer William Bonin when he hitch-hiked home from the beach at 14 years old. David survived, but was left scarred by his brush with death.
As she walked through a dark parking garage, Sharon Wood was unaware that shoe fetish killer Jerome Brudos was stalking her. Sharon survived an attack at gunpoint, but Brudos would kill the next day.
David Crampton's infant son Paul almost died three times while on a hospital ward. No one knew that nurse Beverley Allitt was responsible. She killed four babies - Paul managed to survive.
Morgan Rowan encountered the dangerously charming Rodney Alcala when she was a teenager. She survived an attack by the man who would kill at least nine women.
Emma Percival was in the back of Terry Sullivan's taxi when they were flagged down by Derrick Bird. Bird pointed a gun at them - he had just begun a shooting spree that would claim 12 victims.