When the detective in charge of investigating a series of bank robberies starts to get too close to the culprits, they set up a blackmail scheme to warn him off. But when the crooks begin to fall out with each other, the police learn the truth.

• The Rank Organisation
• Nigel Patrick
• Katherine Woodville
• Colin Blakely
• Derren Nesbitt
• Harry Andrews
• Roy Kinnear
• Margaret Whiting
• John Cowley