M [Criterion Collection] [Blu-ray]

"Fritz Lang's classic early talkie crime melodrama is set in 1931 Berlin. The police are anxious to capture an elusive child murderer (Peter Lorre), and they begin rounding up every criminal in town. The underworld leaders decide to take the heat off their activities by catching the child killer themselves. Once the killer is fingered, he is marked with the letter ""M"" chalked on his back. He is tracked down and captured by the combined forces of the Berlin criminal community, who put him ...