Howling II: Your Sister Is a Werewolf (original title: Howling II: Stirba – Werewolf Bitch) is a 1985 horror film directed by Philippe Mora, as a sequel to the 1981 film The Howling. The film stars horror film veteran Christopher Lee along with Reb Brown and Annie McEnroe as they try to defeat Sybil Danning's werewolf queen Stirba and stop werewolves' plans to conquer the world. Although Gary Brandner, author of The Howling novels, co-wrote the screenplay, the Howling II film is largely unrelated to his Howling II novel from 1979, though it does introduce Eastern European customs and Romani into its werewolf mythology like the book.