M

M, Fritz Lang's 1931 thriller, unfurls a grim ballet of fear and pursuit in Depression-era Berlin. Serial killer Hans Beckert stalks children, his crimes so vile they galvanize not just the police but also the city's criminal underworld to hunt him down. As Beckert's paranoia intensifies, the film weaves a claustrophobic web of surveillance and suspicion, culminating in a chilling climax where moral lines blur and justice takes on a vigilante hue.