Howling II: ... Your Sister Is a Werewolf 4K 1985

The sister of an American named Ben was a werewolf. But not of her own free will: she was lured into their trap and then killed by a werewolf organization from Transylvania. Ben learned this after the funeral from the gray-haired Stefan, who seemed to know everything about werewolves. And Stefan advises Ben and his girlfriend Jenny to go to Transylvania to destroy this organization...