"Three years ago, Saga Bauer received a postcard with a threatening message. It mentioned a gun and nine white bullets-one of which was intended for Detective Joona Linna. According to the anonymous sender, Saga was the only person who could save him. But as time passed, the threat faded. That is, until now. A sack with a decomposing body has been found tied to a tree in the forest, and a milky white bullet casing turns up at the scene. Soon, the...