Caught in a loveless marriage, Dr. John Winnington (Ronald Howard) can't stop himself from falling for his wife's (Mary Laura Wood) younger sister, Christine (Olga Edwardes). But when he suddenly becomes the prime suspect in his wife's tragic murder, John relies on his friend Eric (John Bentley) to clear his name. This classic murder mystery encourages viewers to evaluate all of the clues and guess the killer's identity.
as Dr.John Winnington
as Christine Shaw
as Eric Blair
as Sophie Winnington
as Vincent Humphries
as Annette
as Inspector Markham
as Mrs. Humphries
as Solicitor
as Coroner
as Travel Agent Clerk
as American Woman
as Lorry Driver
as Padre
as Sgt. Hawkins (uncredited)
as Cocktail Party Guest (uncredited)
as Boy Patient (uncredited)
