A high school football star named David is trying to cope with the trauma of recently witnessing his parents' deaths in a grisly car accident. Looking for a fresh start, he moves in with his aunt and uncle in a small town. Eager to fit in and piece his life back together, David's social life begins to grow when he meets a group of friends who welcome him into their fold. He sparks a romance with a girl named Kathy, and things seem to be looking up as he seems to find a path to recovery amidst new relationships and a caring support system.

During a weekend party at his house, while his aunt and uncle are away, David's attempt at normalcy is shattered when a group of uninvited guests crash the festivities. The party quickly spirals out of control, leading to tension among the teens, and inexplicable terror begins to unfold. An unknown assailant embarks on a terrifying killing spree, and the once jovial atmosphere turns into a nightmare of survival. The friends must band together to uncover the identity of the murderer among them before it's too late, as trust becomes a distant memory and suspicion corrupts their ranks.