Disturbing psychological drama starring Potter and Geeson as 20-year-old incestuous twins living in London's Chelsea area. When another man gets too friendly with his sister, Potter gets him drunk and takes him to a homosexual orgy, where he blackmails him into leaving his sister alone.
Afterward he convinces Geeson to help him kill the man. Then Potter goes completely mad and kills his sister and himself. Pretty wretched.
