Ruin Me (2017)

Alexandra reluctantly joins Slasher Sleepout, an extreme horror experience that combines a camping trip, a haunted house, and an escape room. Dropped into the woods with five strangers for a slasher movie re-enactment, she expects staged scares and knife-wielding performers. But when the danger turns real, Alex must keep playing and figure out who is behind the violence if she wants to survive.