What if you invited a serial killer on holiday? Handsome, charming, and arrogant, Tristan has picked up Mandy for a hot one-night stand. The love-struck girl then invites him to a rural weekend getaway with her brother, Calvin, and his girlfriend, Paige, an emergency room nurse. But when the group learn a sadistic serial killer dubbed the Tree Surgeon is plaguing the area, Paige is forced to confront the deeply disturbing truth about Tristan.