College student Justine (Haley Bennett) can't afford to fly home for Thanksgiving, so she stays on her college campus in this 2014 film. Over the break, she finds a girl named Violet (Ashley Greene) in her room with a knife, and when she tries to escape, she quickly finds out that Violet isn't operating alone. She's part of a cult, out to kill the "Kristys" of the world — seemingly perfect, God-fearing women. Justine spends a panicked night trying to escape the killers, engageing in violence of her own while watching some of her friends get killed. It's when she goes after Violet herself that it all comes to a head.