The Borrower

The film is a B-movie about an alien serial killer, who is sent to Earth to live among humans as a form of penalty. The alien’s penalty includes having his body genetically transformed to look like a human’s, but since this transformation is not perfect, after a while his body starts to revert back to its original form and his head explodes, prompting him to “borrow” a new head from the next person happening to be present at the time -by squeezing it off with a crab-like claw and placing it on its own neck. Female cop Pierce (Chong) and her partner try to make sense of the ongoing killing spree, which stands out through the fact that all victims are missing their heads, slowly coming to the conclusion that they are facing a rather unearthly killer. —Wikipedia