At the quaint European village of Karnstein arrive identical twin sisters Maria and Frieda Gellhorn (real-life sibs and 1970 Playboy centerfolds Mary and Madeleine Collinson). Newly orphaned, the beautiful young women come from Venice to live with their Aunt Katy (Kathleen Byron, The Elephant Man) and Uncle Gustav (the legendary Peter Cushing). Upon seeing them […]