Howling II: Your Sister Is a Werewolf is an American werewolf film loosely based on the Howling series of novels written by Gary Brandner. Released in 1985, this film has almost no connection to Brandner's Howling II novel other than the name. The Howling II is the first of six sequels to the 1980 werewolf classic, The Howling. Although some of the details are incongruous, the Howling II continues the story presented in the previous film and addresses the Howling's climax and the apparent death of Karen White. The Howling II introduces many new elements into the mythos of the werewolf, including a background richly steeped in sorcery and occultism.