Leaving L.A.'s Parker Centre, Shane Scully and his wife, Alexa, agree to meet at home...but Alexa never arrives. Then Shane's called to a crime scene on Mulholland Drive, where the victim, an apparent gang member, has been executed - and left in Alexa's car. Her gun is the likely murder weapon. As Shane desperately tries to find Alexa, his leads point to a feud between two gangsta-rap record companies, both heavily manned by Crips and Bloods. At the centre of this war is a ruthless, beautiful Lady Macbeth-like white woman raised in Compton. Married to a multi-millionaire rap mogul, she is known as the White Sister. Shane is no stranger to big trouble, but he's never before been smeared as a "racist cop" or thrown in jail while there's a hit out on him. Much worse is the unknown fate of Alexa, and the fact that in the mysterious White Sister - who holds the clue to a sinister conspiracy - he may have met his match.