Two little girls are found dead in a cellar. Four years later, the murderer escapes during a transfer from prison. The police know that if they do not succeed in finding him fast, he will strike again. Then their worst nightmare comes true: another little girl is found murdered. Inspectors Ewert Grens and Sven Sundkvist, who supervise the hunt for the “beast”, are targeted by the media. While tension almost becomes mass hysteria and the investigation seems to be at a dead end, the last victim’s father decides to do justice himself.As the beast roams freely, brutality infects many, too many people. From supposedly decent people to criminals, everyone is struck by the epidemic and everyone, sooner or later, ends up asking themselves: is the life of one person worth the life of another?