An ex-con is brutally murdered with an axe in the unusually quiet town of Kaalbringen. And then, the body of a wealthy real estate mogul is found, also violently attacked. With what appears to be a serial killer on the loose, Detective Chief Inspector Van Veeteren is called in to help out the local investigation. In his storied career, he's never faced an axe murderer and has only ever left one case unsolved. As details surrounding the murders are collected, Van Veeteren finds there is almost nothing to go on; nothing he can find links the two victims. But then, there's another murder and one of his colleagues, a promising female detective, goes missing, perhaps because the criminal knows she has come too close to the truth...