M (1931)

1930s Berlin is haunted by a serial killer who is murdering children. The entire city is on the hunt: the police, beggars, and even Berlin's criminal element. The killer is taunting them with letters in the newspaper. A man's creepy whistling provides another major clue, but will justice ever be served?

M is a crime movie featuring Peter Lorre.

M is currently streaming for free (ad-supported) on Kanopy, Plex and Plex Player and it's also available on Classix, Criterion Channel and Max Amazon Channel.

It is also possible to buy M on Amazon Video, Apple TV and Vudu or rent it on Pantaflix.