Fred Martin, a taxi driver who is a reformed convict, is used by the police to go undercover in order to help catch a gang of safe robbers. However things start to go wrong when the police stake out the wrong bank and Fred finds himself alone with the crooks.

Jimmy Hanley
as Fred

Lana Morris
as Myra

Sonia Holm
as Jean

Jack Allen
as Parker

Sam Kydd
as Spencer

Pat McGrath
as Henry

Michael Mellinger
as Tim

Charles Morgan
as MacLaren

Bruce Beeby
as Inspector Rawlings

Rupert Evans
as Williams