1. Death House (1987), aka Zombie Death House, directed by action star John Saxon: the inmates at a federal prison go zombie, break out, and terrorize Luke Hagen (Eric).
2. Cry Wilderness (1987): a Bigfoot kidnaps Paul Cooper (Eric), but turns out to be nice. He's really terrorized by an escaped tiger.
3. Dark Room (1988): Abused Perry (Eric) grows up to be a psycho-killer (played by Aarin Teich).
During the 1980s Satanic ritual abuse panic, even relatives had hidden secrets and malicious motives, and David soon realizes that something is wrong. Bodies are found in the neighborhood.
They see Grandpa carrying a body into the basement. They catch glimpses of a lady with a butcher knife and a crazy smile. David calls the police, but no one believes him. Then the lady traps them in the house.
Guess what? It's not Grandma.
Let's review: nuclear families are evil and threatening. But the gay-vague kid saves the day.
Apparently four movies were enough. After a few episodes as a high school kid on The Wonder Years, he retired from show business.