Pin: A Plastic Nightmare

Leon and Ursula Linden are normal kids except for the presence of "Pin" - a strange anatominical dummy that their strict father uses to teach them about life and sex. But when their parents are tragically killed, Leon continues to have an unsual connection with Pin and is consumed with unnatural passion for his beautiful sister. Has Leon become a dangerously unstable adult, or has Pin driven him to madness and murder?