Whatever you do, don't open the door...When a severed foot is delivered to the unsuspecting residents of a student house in Norwich, DCI Kett's Extreme Crime Task Force begins one of the most gruesome investigations of its career.And it's not just a foot. More packages begin to appear at random on people's doorsteps, all of them containing body parts that have been surgically removed and meticulously wrapped.Kett, Porter, Savage and PC Duke find themselves in a race against the clock to identify the victims and their killer, who shows no sign of stopping.And it soon becomes clear that this monster isn't just delivering corpses.He's sending a message.