A gruesome sex-related homicide sparks a chaotic investigation at Linda Vista Community Hospital, leaving students and authorities wondering if it's a twisted S&M game gone wrong or the work of a deranged serial killer. As the inquiry unfolds, a mysterious link emerges between a hallucinogen and a 1973 case, while friends of the victim are stalked by sociopaths with a sinister intent. The outcome is a gory bloodbath, leaving victims to question if they can escape when their greatest enemy lurks within their own minds.
Someone's Knocking at the Door
Two former patients of a medical institution, warped by a sinister experiment, seek revenge on a group of medical students who unwittingly unleash their wrath.
