Body Hugger

David's son is infected by an alien virus which transforms him into a monster that attaches to David's body and takes roots inside him, and David needs to cut his son off to survive. During the surgery, David sees the memory of his son and feels guilty of his negligence of his son in the past, but there is no turning back. David can only seeks for forgiveness in his illusion and the loneliness in his soul transforms him into a body hugger.