John Gilling directs this British crime thriller starring John Bentley and Rona Anderson. Freelance photographer Barbara Leyland (Anderson) is working for Clayton Advertising when the company MD's wife falls to her death in an apparent suicide. However, someone believes Barbara may have photographic evidence that reveals the real killer and sets about making her disappear. Detective Pete Fleming (Bentley) is hired to investigate the mysterious death and is determined to find the killer before Barbara is the next one to meet an unfortunate fate.

1950s British crime thriller. Robert Matthews (Emrys Jones) is arrested in Cornwall when he is mistaken for convict John Barlow, to whom he bears a striking resemblance. When Barlow (also Jones) hears of this, he makes his way to the man's cottage and takes his place. After surviving a local shipwreck Robert's fiancée Ann Farrington (Zena Marshall) is taken in by Barlow, who maintains his imposture but soon discovers that Matthews is not all he seems.