Body Parts

After a crime psychologist (Fahey) loses his arm and nearly his life in a grisly car accident, he undergoes a daring medical operation to have a donor arm grafted onto his body. But after the operation, the arm starts to take on a violent life of its own, striking out against Bill's wife and children. Consumed by fears about his dangerous behavior, Bill is driven to learn about the donor's identity - a horrifying discovery that delivers him into a world of unimaginable terror. (official distributor synopsis)