Three friends travel to Paraguay to prove that cannibalism has never existed there and its a fake story made up for political purposes. There they will meet two other westerners, a drug dealer and his partner who are looking for emeralds. The two men will enslave a cannibal tribe to fulfill their mission but they will not avoid the revenge coming to them. Directed by Umberto Lenzi. Starring Giovanni Lombardo Radice, Lorraine de Selle and Danilo Mattei