William Warner is a lawyer who is famous for his skill at opening any kind of lock, making him a valuable commodity. William is unknowingly enlisted by German spies who want him to open a chest containing a secret formula. This leads to a madcap adventure involving spies, the police and lots of picked locks!
Edmund Lowe
Janis Carter
Robert B. Williams
Richard Hale
Stanley Clements
Tom Kennedy
Kaye Dowd
Dusty Anderson
Harry 'Snub' Pollard
Carole Mathews