Tarzan returns to his homeland of Africa to save his home from destruction.

Police chief Xavier Quinn investigates the gruesome murder of Donald Pater, one of the wealthiest residents on a Caribbean island. He was found decapitated in his Jacuzzi. Although the local political establishment, especially crooked Governor Chalk, insists that small-time thief Maubee is responsible, Xavier has his doubts. This view is complicated by the police chief's personal history with Maubee: The men have been friends since childhood.

A chess grandmaster is in a big tournament, and when his lover is found painted up and the blood drained out of her body he becomes a chief suspect. After he gets a call from the killer urging him to try and figure out the game, he cooperates with police and a psychologist to try and catch the killer, but doubts linger about the grandmaster's innocence as the string of grisly murders continues.