Season 2 Episode 18
A 12-year-old young orphan (Mike Simmrin) is adopted by a rich childless couple (William Frankfather and Grace Zabriskie) who harbor a dark secret. However, the couple themselves do not realize that the young orphan too has a dark secret of his own. Also stars Larry Drake, Georgann Johnson, Stella Hall, and Gary Schwartz as the voice of the werewolf.
Source: Haunt of Fear#24