A famous mystery writer uses his own plot tricks to murder a blackmailer in this British thriller.
Acting
Hugh Sinclair's deliciously self-satisfied villainy
Writing
Meta-plotting that bites its own tail
Production
Postwar London's grey, guilty atmosphere

Director
John Gilling
Trivia, insights & behind the scenes
Director John Gilling later became Hammer Horror royalty, directing 'The Plague of the Zombies' and 'The Reptile'.
This B-picture captures Britain's postwar anxiety about class mobility—Southley's posh murderer feels untouchable until he isn't.