Andy Milligan's The Rats Are Coming! The Werewolves Are Here! concerns a family, the Mooneys, struggling with genetic lycanthropy. One daughter, Diana, is sent to a Scottish medical school in order to help save the family, and returns with a new husband, Gerald. The family disapproves, especially Diana's wicked sister Monica, and spends most of the movie trying to convince Gerald to leave. The family patriarch, Papa, warms to Gerald once he learns that Diana is pregnant, because a normal baby could save the bloodline. Subplots involve Monica's hatred for her animalistic brother Malcolm, who is kept chained in a room, and eldest sister Phoebe's dark secret concerning her relationship with Papa. The inevitable full moon causes the entire family to turn into werewolves, attacking Diana, Gerald, and each other. Gerald and Diana manage to survive the resultant bloodbath, but Diana later tells her husband that his only purpose had been to get her pregnant. She is not normal, as the audience has been led to believe, but can shape-shift at will. She does so, devouring Gerald.