While watching from her train window, Nikki Collins witnesses a murder in a nearby building. When she alerts the police, they think she has read one too many mystery novels. She then enlists a popular mystery writer to help her solve the crime on her own, but her sleuthing attracts the attentions of suitors and killers.
Frank Morrison is a divorced father with a 12-year-old son, Danny. His ex-wife Susan and son Danny now live with Rick Barnes, Susan's new husband. Danny, who has a reputation for telling lies, accuses his stepfather of committing a murder. Initially, no one believes his accusations, but then Frank becomes convinced and is the only one who believes him. Now, the father Danny trusts must protect him from the stepfather he fears.
A tough-on-crime street cop must protect the only surviving witness to a strange murderous cult with far reaching plans.
Brad Whitewood Jr. lives in rural Pennsylvania and has few prospects. Against his mother's wishes, he seeks out his estranged father, the head of a gang of thieves in a nearby town. Though his new girlfriend supports his criminal ambitions, Brad Jr. soon learns that his father is a dangerous man. Inspired by the real events that led to the end of the Johnston Gang, who operated in the northeastern United States in the 1970s.
A sheltered Amish child is the sole witness of a brutal murder in a restroom at a Philadelphia train station, and he must be protected. The assignment falls to a taciturn detective who goes undercover in a Pennsylvania Dutch community. On the farm, he slowly assimilates despite his urban grit, and forges a romantic bond with the child's beautiful mother.
An FBI agent tracks a serial killer with the help of three of his would-be victims - all of whom have wildly different stories to tell.
Six people travel by train overnight from Marseilles to Paris. When the train arrives at its destination, one of the passengers, a girl, is found dead in a sleeping berth. The police led by Inspector Grazzi investigate the other five passengers, suspecting that one of them was responsible. However, as the investigation is stepped up, the other passengers start turning up dead. It is then up to the last remaining two to solve the case, before they become the next victims.
Fashion model Sarah Cornell, from the front car of a subway, witnesses a man pushing a woman onto the tracks to her death. Hoping to dispel the presumption that the woman committed suicide, Sarah contacts the police. But when they arrive to take her statement, she recognizes one of the detectives as the killer. Can she get anyone to believe her before she becomes his next victim?
Frank Johnson, a sole witness to a gangland murder, goes into hiding and is trailed by Police Inspector Ferris, on the theory that Frank is trying to escape from possible retaliation. Frank's wife, Eleanor, suspects he is actually running away from their unsuccessful marriage. Aided by a newspaperman, Danny Leggett, Eleanor sets out to locate her husband. The killer is also looking for him, and keeps close tabs on Eleanor.
Five years after sending a man to jail for the murder of her father and fiancé, Diana returns home to find that he has escaped from prison and has come to confront her. However, the man has not come for revenge, but rather wants her to understand that she put an innocent man away. Captive in her own home, Diana is resistant - she knows what she witnessed the night of the murder. But as time progresses, Diana starts to question what she saw that night as well as her own testimony.
After Silvia Broome, an interpreter at United Nations headquarters, overhears plans of an assassination, an American Secret Service agent is sent to investigate.