After a night of bizarre hallucinations, Brian wakes up, sees blood on his bedsheets and discovers a jovial talking slug attached to his body. The creature, a brain-eating parasite, administers Brian doses of a highly addictive psychedelic drug to keep him under control, while using his body to carr

After a night of bizarre hallucinations, Brian wakes up, sees blood on his bedsheets and discovers a jovial talking slug attached to his body. The creature, a brain-eating parasite, administers Brian doses of a highly addictive psychedelic drug to keep him under control, while using his body to carry him to its next meal.