By pure chance, the body of a young female murder victim is discovered, seconds before it disappears forever into the flames of a municipal incinerator. Katrine Ries Jensen and Thomas Schaeffer are confronted with an apparently perfect murder. The killer is a total psychopath, who plans his killings in minute detail and is not afraid to play cat and mouse with the police. Meanwhile, Katrine meets a charming man who seems to be the perfect partner for her – were it not for the fact that he is married. The relationship swiftly becomes much more serious than she has anticipated, but the man in question proves to be harboring far more secrets than she could possibly have imagined...