Lorre wanders the busy streets, and pauses to gaze in a display window with reflections of rows of knives. The knives frame him, separating and isolating him from the rest of the world by his inhuman urges, and his next potential victim is first shown to him (and the audience) by a reflection of her in the window, surrounded by rows of knives. When he is marked by the chalk M on his back, it is fitting that he sees the "mark of Cain" upon himself in the reflection of a mirror, pointed out to him by his next potential victim, so unaware of the danger she is in that she picks up his dropped murder weapon and hands it back to him.
Realizing that he himself is being stalked, the murderer deserts the child he is stalking and runs into an office building that is closing down for the night. The criminals perform an organized assault on the building, neatly subduing the night security, and setting up a methodic and thoughral search in an amazingly short space of time. The parallel between the heads of the police and the criminal element is taken even farther when Shranker masquerades as a policeman to gain entrance to the building. As the army of criminals track down the murderer and corner him in the deserted office building, the animal motif reappears in the film: they spread out methodically looking for him much like a group of hunters beating through the bushes at a pheasant hunt, and when Lorre is found he freezes in a single beam of illumination, startled and wide-eyed like a deer in the headlights.
As the head of police reads the report on the apparently unconnected burglary at the office building, Lang again uses voice-overs on a series of still shots to tell the story and the captain's reaction to it. Lang uses shots of the empty devastation in the building, room by room, silent save for the captain's comments as he reads on and assimilates what he's read: "Did they intent to empty the whole place?... This is madness... Ah, now it makes sense. They were after the safe... They didn't open the safe? And that safe not touched either. What were they doing?". He uses this effect again to show the captain is lying when he implies to the captured safe-cracker that he will be brought up on murder charges by implying that "they did their work too well... The night watchman", then cutting to the night watchman at home, stuffing himself at a well-laden table while guzzling a
The last scene of the film consists of a detailed mock trial. The murderer is dragged in kicking and screaming, but he freezes in mid-word when he is confronted with a wall of silent, accusing faces, a sea of hateful eyes. In another parallel of the criminals and the police, when Lorrre objects to a mock trial, and cries they have no right to do this to him, Shranker replies, "You'll get your rights. We are all law experts here. From six weeks in Tegel to fifteen years in Brandenberg. We'll see that you get justice". In their eyes, justice is a much harsher mistress than it is perceived by the average law-abiding citizen. Lorre's "lawyer" points out that Shranker is hardly equipped to accuse Lorre when he is wanted by the police for three murders himself.
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