Most critics regard M as a gripping thriller whose force rests on Peter Lorre’s performance and Fritz Lang’s handling of sound and images. Lorre draws particular praise for making the killer pitiable without making him less frightening. The reviews repeatedly credit sound, cutaways and attention to objects with building tension without relying on action. Praise also clusters around the film’s depiction of paranoia, mob justice and a society whose sickness extends beyond the man being hunted.
The spread is largely enthusiastic, with differences more often about emphasis than objections. Empire reads the film as a powerful case against capital punishment; other reviews concentrate on hypocrisy and shifting sympathies. Den of Geek supplies the more guarded rating, though its account still praises the pacing and examination of authority and justice. Few substantial reservations emerge from the reviews, even where the marks differ.
