This 1989 horror comedy stars Susan Blakely, John Saxon and John Schuck.
This features an unhappy housewife, Leslie (Blakely) who seeks affection from her husband, Howard (Schuck). Soon, Leslie meets Harry (Saxon), a mysterious, pet shop owner who is actually a werewolf. After he bites her on the toe, she starts to change growing hair and fangs. Leslie's teen daughter, Jennifer (Tina Caspary) discovers what's happening to her and tries to help. I remember this was on HBO many years ago and I've always though it was somewhat amusing. If you're into horror or horror comedies, give this a try.