Killer Nun (1979)

From the Secret Files of the Vatican!

A demented nun sliding through morphine addiction into madness, while presiding over a regime of lesbianism, torture and death. Sister Gertrude is the head nurse/nun in a general hospital, whose increasingly psychotic behavior endangers the staff and patients around her.

Genres: Horror, Thriller, Mystery

Stars: Anita Ekberg, Joe Dallesandro, Alida Valli, Massimo Serato, Daniele Dublino