Killer Ape is one of the most violent entries in Columbia's "Jungle Jim" series. In this outing, Jim (Johnny Weissmuller) finds out that members of the Wazuli tribe are selling animals to white hunters. These animals are in turn used for illegal research in a scheme to create drugs for bacterial warfare. Before Jim can foil the villains' plans, he must first clear himself of a murder charge. The film's title derives from the tribesmen's habit of wearing ape costumes to scare away outsiders. As usual, many of the film's best scenes go to Tamba the Chimp, who gets even more screen time than leading lady Carol Thurston. ~ Hal Erickson, Rovi