Michael Shayne, Private Detective is a 1940 American private detective mystery film. It was the first in a series of seven films starring Lloyd Nolan as private detective Michael Shayne. The film co-stars Marjorie Weaver, and also features Elizabeth Patterson, Joan Valerie, and Donald MacBride
Synopsis: Private detective Michael Shayne is hired to act as a guardian to a wealthy man's daughter who has been gambling away her allowance and associating with shady characters in a casino.
However, he quickly finds himself embroiled in a murder case and has to
stay one step ahead of the police while he attempts to solve it.