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Symbol for metre.

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Film made in Germany in 1931, directed and co-written by Fritz Lang. It is loosely based on the real-life hunt for a Düsseldorf child-murderer, in which the criminal underworld assisted the forces of law and order to track the killer down.

In his first sound film, Lang comments on the ironic parallels between organized crime and the police and analyses the psychological make-up of a compulsive killer, hauntingly played by Peter Lorre.