My Mom's a Werewolf is a 1989 horror comedy film directed by Michael Fischa, written by Mark Pirro, starring Susan Blakely and John Saxon.
Plot
Leslie Shaber is an average suburban housewife who is ignored and taken for granted by her husband Howard. On an outing to the pet store she meets Harry Thropen, the store's mysterious and handsome owner. Leslie is taken aback by his interest in her, but invites him to lunch after Harry stops a purse snatcher that had targeted her. During the lunch Harry passionately kisses her, something that is witnessed by Leslie's daughter Jennifer, convincing her that the two are having an affair. The kiss ends abruptly when Harry is frightened away by their flambé dessert. Leslie follows him back to his store, where he mesmerizes her. He leads her to his bedroom, where he bites her big toe. This snaps Leslie out of her trance and she runs out. Harry is content to let her leave, saying that he will "be in her thoughts".
After returning home Leslie's personality and diet begin to change, as she begins to eat meat despite being a vegetarian and becomes more aggressive in the bedroom. That night she has terrible nightmares about Harry and in the next morning discovers that she has sprouted fangs. Attempts to file down the teeth at the dentist are unsuccessful and by the time she returns home, Leslie has also begun to grow fur all over her body, and her ears transform into pointy ears. She is equally unsuccessful in permanently removing the hair. This latest change is witnessed by Jennifer, who is now aware that her mother is turning into a supernatural creature.