Watch Killer Nun (1979) online for free full movie and streaming film in English with HD quality. Giulio Berruti’s unusual cult horror film casts former sex symbol Anita Ekberg as Sister Gertrude, a nun working in a mental institution. Gertrude is clearly insane, and takes a great deal of morphine for her self-diagnosed cancer. She goes to town and picks up men, seduces a younger nun (Paola Morra) who was abused by her grandfather, and supposedly murders patients until the Mother Superior (Alida Valli) has her poisoned. Luigi Casellato appears as a crippled painter who gets kicked to death, and genre favorite Joe Dallesandro leads the supporting cast as a handsome doctor. Antonio Maccoppi’s skillful cinematography gives the film a harsh, intimidating look and Ekberg creates a sympathetic character, although certain scenes — such as her stepping on a patient’s dentures — cross the line into unintentional humor.