There's a search for a missing girl, and another for a serial killer: death holds all the cards . . . When Marla Gustafson vanishes on her way to her father's farm, her car left empty on the side of an isolated country road, even Grace MacBride and her eccentric team of analysts are baffled. Meanwhile in Minneapolis, homicide detectives Gino and Magozzi have a serial killer on their hands - two women murdered in cruelly similar fashion, with playing cards left on the bodies. But one card is an ace, the other is a four - it seems the killer is already two murders ahead. With both teams stumped, it slowly becomes clear the evidence is inexplicably entangled. And they have little time to unravel the threads: a twisted killer is intent on playing out the deck...