Abbott and Costello Meet the Invisible Man (1951)
Two bumbling private eyes help a man, wrongly accused of murder who has become invisible, to clear his name
Black Magic (1949)
Hypnotist uses his powers for revenge against King Louis XVs court
The Brasher Doubloon (1947)
Detective Philip Marlowe encounters a variety of characters while checking on why Leslie Murdock stole a rare doubloon from his mother