Parasyte

Shin is an average teenage boy, except for the alien living Inside his left hand! Unable to kill the parasite without killing himself, Shin is sucked into a secret alien plot that threatens to destroy all of humanity. Written with dark humor and filled with social commentary, Parasyte is a thinking fan's mix of science fiction, horror and well-developed human drama. It's this generations' version of Invasion of the Body Snatchers. Hollywood movie rights sold!