The Night Runner is a 1957 American film noir drama film directed by Abner Biberman, produced by Albert J.Cohen and starring Ray Danton and Colleen Miller. Its screenplay was written by Gene Levitt. The story focuses on a released mental patient who falls in love but cannot control his violent urges.^[1][2][3]

Roy Turner, a mental patient with a violent past, is prematurely released from a state mental hospital because of overcrowding. His psychiatrist advises him to avoid stressful situations. Realizing that he cannot handle the pressures of big-city life, he moves into a beach-side motel in a small coastal town and falls in love with Susan Mayes, the daughter of the motel's owner, Loren. Things go very well until Loren discovers the truth about Roy's hospitalization. While Susan is out one evening, Loren commands Roy to leave, calling him a "lunatic". Roy snaps, killing the man. There is nothing tying Roy to the crime and, for a time, things again look bright for him and his relationship with Susan. They sell the motel and plan to move away together. However, while packing up, Susan comes across something that will implicate Roy, although she does not realize this, she is merely excited that there may finally be a clue to her father's killer. Cornered, he suggests a walk on the beach. There, he confesses to killing Loren and says he must now kill her. He pushes her into the water but comes to his senses and rescues her. He takes her back to the motel, then phones the police to turn himself in.

• Ray Danton as Roy Turner
• Colleen Miller as Susan Mayes
• Merry Anders as Amy Hansen
• Willis Bouchey as Loren Mayes
• Harry Jackson as Hank Hanson
• Roberto Anderson as Ed Wallace
• Jess Inness as Miss Dodd
• Eddy Waller as Vernon
• John Stephenson as Dr. Crawford
• Alexander Campbell as Dr. Royce
• Natalie Masters as Miss Lowell
• Richard H. Cutting as Male Interviewer (as Richard Cutting)
• Steve Pendleton as Captain Reynolds
• Jack Lomas as Real Estate Man
• Bill Erwin as McDermott
• Alex Sharp as Deputy

• List of American films of 1957