Four girls from very different backgrounds are making their way to the mysterious Rosenholm Boarding School from different corners of the country. The one thing they have in common is the strange offer they have received to apply for a place at what will turn out to be a school for magic, deeply embedded in Nordic mythology, nature magic and shamanism. The girls have been invited to apply for a reason that is as yet unknown to themselves, but already during the unorthodox application tests, it becomes apparent that a spirit is trying to establish contact with the girls. It turns out that a young girl was murdered under mysterious circumstances in the 1980s and the killer was never found. Her spirit is still haunting the place, and she is now urging the four girls to bring justice and find the killer. But someone is keeping an eye on them and it quickly becomes clear that their lives are in danger.