M (1931) is the portrait of a city united against itself. The efficiency of Fritz Lang’s technique and the ambiguity of its implications are summed up by that lonesome letter, which Hans Beckert (Peter Lorre) discovers himself branded with—seared into the back of his overcoat in stark chalk strokes. Fear swims in the bulging white glass of his eyes. Tubbier than in his early Hollywood period, the 26-year-old Lorre looks as much like a golem as a cherub. His waxen moony cheeks, snub nose, and pouting lips make him as delicate as the dolls in the toy store window where Beckert sees himself reflected, accompanied by a little girl. If Beckert doesn’t know what the mark stands for, he does know what it means. The question is no longer whether he’ll be caught, but when—and by whom. M is for murderer. M is what he’s reduced to.