In a remote bay in northern Norway stands an old boarding school, lonely and abandoned, where mysterious deaths have been occurring for years. When the schools new teacher, Sondre Iversen, begins to familiarise himself with the institution, he immediately senses that something within these walls is not as it should be. Many of the residents seem strange and withdrawn, as if they are guarding an old secret.

And then - another student disappears!

To Sondre, it is clear that someone in the house is playing a dangerous game. But his investigations do not go unnoticed, and soon he realises that his own life is in danger.