Richard Arlen, Andy Devine, Jean Brooks, Edward Brophy, Marc Lawrence, Rudolph Anders, Richard Carle, Andrew Tombes, Tom Dugan, Vince Barnett, Mira McKinney, Richard Kean, Irving Mitchell, George Pembroke
Detectives Dick Williams and Andy McAllister find themselves trying to solve several crimes at an isolated mentally-ill hospital, where the patients range from slightly daffy to criminally insane, and they don't know which is which. A gang is out to steal a fortune inherited by one of the patients and, before Dick and Andy solve the case, several patients are transferred to the cemetery. And 'tiddlie-winks" are indeed involved.