A bleak midwinter descends as Detective Harry Hole faces his most chilling case yet, tracking a professional hitman on a path of destruction.

On a freezing December night, Christmas shoppers gather for a Salvation Army carol concert. Suddenly, a shot shatters the festive air, and a singer falls dead.

Terror grips the city. Detective Harry Hole and his team are summoned to investigate, but the scene offers only questions: no suspect, no weapon, no clear motive.

But when the assassin realizes hes killed the wrong person, Harry understands this is only the beginning.

Now, the clock is ticking as Harry races to stop a ruthless killer before they strike again.