In a world where science and mystery collide, a scientist obsessed with uncovering the secrets of evolution becomes the focal point of a dark adventure. After experimenting with a serum that promises to revert one to a primitive state, Dr. James MacHugh transforms into a creature that is half man, half ape. Caught between his humanity and his animal instinct, he begins to lose control and hunt down those who cross his path.
Meanwhile, a young and brave woman, intrigued by the strange occurrences in the jungle, sets out to unravel the mystery of the deaths plaguing the area. As she edges closer to the truth, she encounters the tragic story of MacHugh, who struggles between his love for science and the growing savagery he unleashes in his new form. Caught in his fierce instinct, he becomes both the hunter and the prey, leading to an inevitable confrontation.
Tension mounts as the locals, fearful of the unknown, decide to take justice into their own hands, driving the scientist to a terrifying climax. With a focus on the fear of the unknown and the search for identity, the plot takes us on a chilling journey that explores how far human obsession can go and what it truly means to be human. In a world where the line between bestiality and rationality blurs, the struggle for redemption becomes a battle for survival.