LAPD lieutenant detective Decker and his wife, Rina, have willingly welcomed fifteen-year-old Gabriel Whitman, the son of a troubled former friend, into their home. While the enigmatic teen seems to be adapting easily, Decker knows only too well the secrets adolescents keep--witnessed by the tragic suicide of another teen, Gregory Hesse, a student at Bell and Wakefield, one of the city's most exclusive prep schools. Gregory's mother, Wendy, refuses to believe her son shot himself and convinces Decker to look deeper. What he finds disturbs him. The gun used in the tragedy was stolen--evidence that propels him to launch a full investigation with his trusted team, Sergeant Marge Dunn and Detective Scott Oliver. But the case becomes darkly complicated by the suicide of another Bell and Wakefield student--a death that leads them to uncover an especially nasty group of rich and privileged students with a predilection for guns and violence. Decker thought he understood kids, yet the closer he and his team get to the truth, the clearer it becomes that he knows very little about them, including his own charge, Gabe, the son of a gangster and an absent parent, the boy has had a life filled with too much free time, too many unexplained absences, and too little adult supervision.