A large family gathers in the country side for their very elderly grannies' birthday. One gift happens to be from their ostracized, black sheep nephew, and upon opening it, the two loveable grannies turn into rabid, flesh-eating monsters.
If you liked this movie, you should also see: The Return of the Living Dead (1985)An American Werewolf in London (1981)Basket Case (1982)Dead Alive (1992)Creepshow (1982)