A blackmailer is murdered, and the police find that there is a long list of suspects who wanted to see him dead.
Mary Germaine
as Carol Blane
William Sylvester
as Jimmy
Alexander Gauge
as John Markham
Denis Shaw
as Bassett
Ingeborg von Kusserow
as Emma
Patricia Owens
as Joan
C. Denier Warren
as Jock
Barry Wynne
as Billy Blane
Hugo Schuster
as Dr. Welich
John Arnatt
as Pete Carter
Sidney Vivian
as Police Inspector (uncredited)
John H. Watson
as Bert - Café Customer (uncredited)
