Amsterdamned is a 1988 Dutch horror movie about a serial killer who hides in the canal system of Amsterdam. The film was directed and written by Dick Maas, and stars Huub Stapel, Monique van de Ven, and Serge-Henri Valcke.The film revolves around a serial killer who uses the famed canals of the Dutch capital to strike random people. A hard boiled detective in charge of the case teams up with an old friend to stop the killer.