Duel in the Jungle is a 1954 British adventure film combining the detective film with the jungle adventure genres directed by George Marshall and starring Dana Andrews, Jeanne Crain and David Farrar. It was shot at the Elstree Studios near London and on location in Southern Africa. The film's sets were designed by the art director Terence Verity. It was produced by Associated British in conjunction with Marcel Hellman. It was released in the United States by Warner Bros. Plot American insurance investigator Scott Walters is sent to London to interview businessman Perry Henderson about his US$2 million insurance policy leaving his elderly mother as sole beneficiary. Walters meets and is taken with Perry's personal secretary Marian Taylor but wishes to speak to Perry. His cousin Arthur Henderson explains that Perry is deep sea diving off the coast of Portuguese East Africa but doesn't tell Walters he is after deposits of diamonds on the sea bed. Alarmed by the danger, Walters tells Arthur to make Perry stop all dangerous activities or he will forfeit his policy. Walters attempts to romance Marian, but she tells him she is engaged to Perry. He decides to return to America but boarding the plane, he sees a newspaper headline that Perry was swept overboard off the SS Nigeria during a storm when the ship was off Lourenço Marques. Walters leaves the plane and later goes to inform Marian but her landlady is cleaning her recently vacated flat saying that Marian flew off somewhere. He thinks she has gone to South Africa, so Walters flies to South Africa where he attempts to book passage on the SS Nigeria, a coastal tramp steamer. Walters finds the ship has departed, but he flies to Beira to board her there where he books accommodation sharing a compartment with Pitt, an English salesman. During a storm Pitt and Walters are the only passengers well enough to leave their cabin to dine with the ship's captain. Keeping his occupation a secret, Walters infuriates the captain by attempting to question him about Perry's death. Walters's suspicions are further aroused when he discovers that the only witnesses to Perry's death were employees of his firm, which also owned the SS Nigeria. The next day Walters finds a secret compartment on the ship and finds a cigarette butt on the compartment's floor bearing the markings of Perry's bespoke cigarettes. Walters also discovers Marian