Tanya (Vanity), and her lover, Lobo escape to the solitude and tranquility of a deserted tropical island. Soon, Tanya begins to explore her new found paradise. During one trip into the jungle, she discovers and eventually befriends a gorilla-like creature. A vicious rivalry develops between Lobo and the creature, "Blue." Lobo now takes on animal characteristics. He takes Tanya prisoner and begins a campaign to kill Blue. Meanwhile, the beast, who has observed Tanya and Lobo at work, play and lovemaking, now begins to develop human traits - and needs! Tanya is caught in a fierce battle between man and beast for total possession of a beautiful woman.