Greystone Manor is a horror film set in Greystone Park Psychiatric Hospital in New Jersey. The film follows Walter Babkins, a patient who is treated terribly by the doctors. After Walter lashes out at a doctor during dinner, the doctors secretly kill Walter with a lethal injection. When a major hurricane hits, the doctors become trapped in the asylum with Walter's vengeful spirit haunting them for their abusive treatment and murder of him. The film is targeted towards cultured intellectuals who enjoy suspenseful and artistic horror films.