Inspector Blomfield catches a thief who has a fatal accident while trying to escape in his car. A short time later, his drug-addicted brother Johnny enters the police station while Blomfield is investigating a murder and threatens to blow himself and everyone else up with a bottle of nitroglycerine.
Eddie Blomfield
Johnny Smith
Sergeant Harry Colman
Susan Gillespie
Inspector Sterling
Colonel Lister
Mac O'Hara
Blinky Smith
Fred Lancaster
Arthur Baker
Nelly Blomfield
Shakespeare
Mary
