A serial killer named The Shark is terrorizing London by killing his victims with a speargun and then, dressed in a scruba-diver's wetsuit, using the city's sewer tunnels to make his getaway.

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Main Cast: Joachim Fuchsberger, Brigitte Grothum, Elisabeth Flickenschildt, Klaus Kinski, Eddi Arent, Richard Münch, Jan Hendriks, Heinz Engelmann, Siegfried Schürenberg, Hela Gruel

Director: Alfred Vohrer

Writers: Egon Eis, Harald G. Petersson, Gerhard F. Hummel

Editor: Carl Otto Bartning

Cinematographer: Karl Löb

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