Crimen (also known as ...And Suddenly It's Murder! and Killing in Monte Carlo) is a 1960 Italian whodunit comedy movie by Mario Camerini.

The movie had two remakes: Io non vedo, tu non parli, lui non sente was directed by the same Camerini in 1971 and starred Gastone Moschin, Enrico Montesano and Alighiero Noschese, and Once Upon a Crime, was filmed in 1992 by Eugene Levy and has John Candy and James Belushi in the main roles. It was also remade in Hindi as 36 China Town.