Murder games - James Patterson

Now a hit TV series, Instinct
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A serial killer is loose on the streets of Manhattan.

His victims appear to be total strangers. The only clue that links the crimes is the playing card left behind at each scene that hints at the next target.

The killer, known in the tabloids as the Dealer, is baiting cops into a deadly guessing game that has the city on edge. Elizabeth Needham, the tenacious detective in charge of the case, turns to an unlikely ally - Dylan Reinhart, a brilliant professor whose book was found along with the first playing card.

As the public frenzy over the Dealer reaches a fever pitch, Dylan and Elizabeth must connect the clues to discover what the victims have in common - before the Dealer runs through his entire deck.
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'Not many writers can smash out blockbuster books back-to-back, but one name is leaps and bounds ahead in the juggernaut literature stakes: James Patterson. Known for his lightning-fast plots, cliff-hanger chapters and encyclopaedic crime scene knowledge, James has created the foundations for an unforgettable new drama series.' - Mail Online