Detective John Stone of the NYPD heads up the 43rd's cold case unit, in the Bronx. In a place like the Bronx you get a lot of cold cases. So Stone has one golden rule for investigating a case: it must have some remote chance of being solved. So what made him choose the Al' Chester case, the sixty year-old schizophrenic murdered on his birthday, twelve years earlier, alone in his apartment - a case where there was zero forensic evidence?The fact was, it should have been a slam-dunk. They had the time of death - ten thirty on the Friday night; cause of death - a single stab wound to the heart; motive - half a million bucks; prime suspect – a gang member seen on the night of the murder trying to break into the victim's house...only one thing was missing.Proof.The complete absence of any forensic evidence meant that somebody would be getting away with murder, unless Stone and Dehan could uncover the truth. But in this apparently insoluble case, the truth might turn out to be a lot darker than they expected.