Emma is persuaded to join her religious boyfriend, August, for a week with his devout friends. Once at the congregation house, she soon realizes that this is no ordinary Christian community—August has brought her to a cult.

The newly engaged miner Mats Israelsson finds himself short on money and decides to take on a dangerous job in the mine, but things are not what they seem. Strange sounds in the shafts and a mysterious man in need of help lead Mats down a dangerous path, where he is confronted by his greatest fear.