Duplicity is set in the Nineties and tells the story of a psychic detective. He sees a message on a blackboard, and he is off on a new case. New York Supreme Court Judge Joseph Crater disappeared in 1930 and was never been heard from again. Carlos and some psychic friends attempt to contact his spirit. This ticks off the spirit, who grudgingly agrees to impart the details of his fate but swears that Carlos will suffer for it. Carlos’ personality merges with Crater's and is taken over by an evil spirit, which culminates in the reliving of the final days of the missing man’s life - which may end in yet another death.

The plotting and pacing of this novel flow well. The settings in the '30s are well described and almost come to life. The dialogue is appropriate depending on the period the characters inhabit.

Duplicity is an interesting mix of New Age and Golden Age mystery and is a great read for any mystery lover.