Oscar and Josefine are celebrating Midsummer with Oscar's grandparents in the country. A demon, Thorsen, gives Josefine the gift of enabling her to travel back in time. Visiting Oscar's family in the 17th century, Josefine saves a sickly young girl from the stake. But now the villagers see Josefine as a witch and want to burn her at the stake instead.
It is the last day of school for Christian and his younger sister Sophie. They are heading to a party at his friend Trina. High school graduation is just around the corner and after the freedom and future. But behind the idyllic facade lurks tragedy and secrets. That evening Sophie commits suicide.
Investigator Jan and profiler Louise constantly move around in the thrilling periphery of a murderer's view as they link a series of killings.