Bloodlust! (1961)

Bloodlust! (1961) A group of teen-agers vacationing in the tropics take a boat out to a seemingly deserted island. They soon find, however, that the island is inhabited by a wealthy recluse and his staff. While their host is initially hospitable, he quickly reveals his true purpose: to hunt down and kill each of his visitors, as he has done with everyone unlucky enough to set foot on his island.