Jon George

Unhappy marriage causes divorce. Brosnan (new husband) and wife attempt to build a new life, and move to a new state. However, the ex-husband follows and the story unfolds from there. (imdb)

A group of forest rangers go camping in the woods, and trespass into an area where a backwoods mama likes to kill people who come onto her turf. (imdb)

Deviants are held at a rehabilitation fortress until they're set into a deadly game of survival, in the hopes of returning to world society.