Criminal defense attorney Mickey Haller's father was a legendary lawyer whose clients included gangster Mickey Cohen (in a nice twist, Cohen's gun, given to Dad then bequeathed to his son, plays a key role in the plot). But Dad also passed on an important piece of advice that's especially relevant when Mickey takes the case of a wealthy Los Angeles realtor accused of attempted murder: "The scariest client a lawyer will ever have is an innocent client. Because if you [screw] up and he goes to prison, it'll scar you for life."

Louis Roulet, Mickey's "franchise client" (so-called becaue he's able and willing to pay whatever his defense costs) seems to be the one his father warned him against, as well as being a few rungs higher on the socio-economic ladder than the drug dealers, homeboys, and motorcycle thugs who comprise Mickey's regular case load. But as the holes in Roulet's story tear Mickey's theory of the case to shreds, his thoughts turn more to Jesus Menendez, a former client convicted of a similar crime who's now languishing in San Quentin. Connelly tellingly delineates the code of legal ethics Mickey lives by: "It didn't matter...whether the defendant 'did it' or not. What mattered was the evidence against him--the proof--and if and how it could be neutralized. My job was to bury the proof, to color the proof a shade of gray. Gray was the color of reasonable doubt." But by the time his client goes to trial, Mickey's feeling a few very reasonable doubts of his own.