Spook Busters

Spook Busters is a 1946 film starring the comedy team of The Bowery Boys. It is the fourth film in the series of forty eight.

Upon encountering the scientist, Sach quickly becomes part of the experiment when the scientist wants to take part of his brain out and put it into a gorilla. A fight ensues and, after the cops arrive and apprehend the criminals, the boys find themselves at the police station telling the story of what happened. Louie then calls them and tells Slip that the mouse in his store had puppies and the boys quickly leave the police station to go to their next job.Gabriel Dell makes his first appearance of the series, playing an old member of the gang who just returned from a stint in the Navy and newly married to a French woman. ........

Source: Wikipedia