The hanged man's tale : a novel / Gerald Jay.

Enhanced descriptions from Syndetics:

In the shadowy back alleys and opulent homes of Paris, hard-nosed police inspector Paul Mazarelle of The Paris Directive sets out on the trail of a serial killer.

A murdered man is discovered dangling inside the tunnels of a Paris canal--the only clue, the tarot card in his pockets: the Hanged Man. When an innocent suspect is railroaded into prison for the homicide, Mazarelle sets off on the hunt for the real killer.

For the charming, hot-tempered, impulsive Frenchman--now back from the provinces and leading his own homicide unit out of Paris's famed Quai des Orfevres--it's an investigation that takes him far from the comforts of Beaujolais and bouillabaisse, and plunges him into an underworld of ruthless white supremacists looking for scapegoats in Paris's growing immigrant community, corrupt cops eager to cover up a shady side business, and a conspiracy of secrets that threaten his own life.

Meanwhile, Claire Girard, an irresistible and ambitious journalist at a popular tabloid, is wrapped up in the same story. On the trail of the Tarot Card killer, Mazarelle finds himself blindsided by their growing attraction. And when his team's case collides with Girard's latest scoop, and the body count keeps rising, Mazarelle himself becomes a prime suspect who must clear his own name. Gerald Jay's latest Mazarelle adventure is a riveting, fast-paced thriller about a classic French detective making his way through the dangerous streets of a very modern world.