One by one, all of Melinda"s friends and family are being murdered. When kidnapped, she learns the horrific truth: Doctor Hatcher, a psychotic, deranged scientist, plans to perform his ultimate sadistic masterpiece the physical splicing of a man and a woman together, to become one. 一个头戴面具的杀人狂无辜屠杀身边任何一个人，凶杀已经反完成这项工作，在最后，杀手真实是连体双人，即使这意味着脱落的无辜者的血。