A flurry of anonymous letters and two suicides leads Inspector Van der Valk to a mission in Drente where small-town hysteria may just lead to one of the century's most wanted criminals.

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Main Cast: Frank Finlay, Andrée Champeaux, Odile Versois, Hans Christian Blech, Jacques Monod, Danièle Girard, Vernon Dobtcheff, Eva Simonet, Dominique MacAvoy, Françoise Prévost

Director: Marcel Cravenne

Writers: Robert Muller, Robert Scipio

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Cinematographer:

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