By The Way I Love You Too (2019)

After mysteriously vanishing 3 years earlier, Rex reunites with his newly engaged ex-girlfriend and a group of friends at a remote location in the woods. Tension between the friends began to escalate and Rex decides to leave when suddenly they are attacked and terrorized by a clan of mutant mountain men that kill for sheer joy. The secret of Rex's disappearance 3 years earlier is what might save them.