One cold winter night in Stockholm, a young man appears walking along a railway bridge. He is severely hypothermic and has severe pneumonia. In addition, a shocking fact is revealed at the hospital: according to the death certificate, this person has been dead for seven years. He was killed by the serial killer Jurek Walter, who, after Joona Linn arrested him, was sent to psychiatric treatment in complete isolation by the court. But where has that person been all these years? The old case is reopened. Looks like someone is trying to get under the skin of a serial killer. You need to act fast because time is running out. Lars Kepler exceeds all expectations with his fourth novel.