Someone is killing people related to a South American expedition. The means of murder are poison darts with rubber spiders attached to them. A writer and some police detectives investigate.

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Main Cast: O.W. Fischer, Karin Dor, Doris Kirchner, Werner Peters, Eddi Arent, Klaus Kinski, Claude Farell, Gabriel Llopart, Fernando Sancho, José María Caffarel

Director: Franz Josef Gottlieb

Writers: Alexandra Becker, Franz Josef Gottlieb, Rolf Becker

Editor: Anni Lautenbacher

Cinematographer: Godofredo Pacheco

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