A jeweller is killed in a gang robbery leaving the daughter as the only witness. When the police can't build a case against him she decides to go undercover to infiltrate the home of the killer's brother. Slowly she is drawn into the world of the rival gangs.
Kieron Moore
as Nicholas Conway
Elizabeth Sellars
as Jean Talbot
Edward Underdown
as Michael Conway
John Horsley
as Inspector Trubridge
Robert Raglan
as Sergeant Perkins
Ethel O'Shea
as Mrs Conway
Martin Benson
as Farnborough
Anthony Pelly
as Bentock
Derek Blomfield
as Wilbur
Robert Moore
as Roger
Bill Lowe
as Walters
Michael Balfour
as Parkes
