Meet Chief Inspector William Wisting, Head of CID in Larvik, Norway. An experienced policeman who is familiar with the dark side of human nature, he lives in challenging times for the Norwegian police force. In Stavern around midsummer a severed left foot in a training shoe is washed up on the shore. Soon a second is washed up, but it is another left. Then another, and yet another. Altogether four left feet in the course of one week. Police Inspector William Wisting has many years of murder experience behind him, but he has never examined evidence like this. Four feet… from four different victims?