His Kind of Woman (1951)

Nick Ferraro, deported crime boss, needs to re-enter the USA. His plan involves "honest" gambler Dan Milner, who's subjected to a series of "misfortunes," then bribed to take a trip to Mexico. En route, Dan meets chanteuse Lenore Brent, truly his kind of woman. But on arrival at posh Morros Lodge in Baja California, Dan finds the ostensibly rich, carefree guests all playing roles...except, possibly, ham actor Mark Cardigan. What does Ferraro want with him? Can he trust anyone?