Sach just lost his job as an assistant to a private detective, but he wasn't paid. Slip goes with him down to the detective's office to demand payment, but finds the office empty. A woman enters the office and mistakes Slip for the detective and convinces him to take on a case to find her sister after offering a $50 retainer.
Leo Gorcey
as Terence Aloysius 'Slip' Mahoney
Huntz Hall
as Horace Debussy 'Sach' Jones
Betty Compson
as Selena Webster
Gabriel Dell
as Gabe
Teala Loring
as Eleanor Williams
William Benedict
as Whitey
Bobby Jordan
as Bobby
David Gorcey
as Chuck
Bernard Gorcey
as Louie
Dan Seymour
as Dr. Armand
Byron Foulger
as Prof. Quizard
Patti Brill
as Alice
