In the dead of winter, Kat and Rose, two very different girls, find themselves spending winter break at their prestigious prep school. What they don’t know is that Kat is being stalked by an evil entity, and their lives are about to change forever. Meanwhile, Joan, a young, troubled woman, makes her way across a frozen landscape towards the school. But why?

Allison and her daughter Abigail return to Allison’s hometown after the death of Allison’s beloved aunt. While there, they encounter Bart, a man who knew Allison when she was a teen. But Bart’s friendliness soon turns into something more sinister.