Investigating a suspicious suicide in the woods near Greenbury, former LAPD detective Peter Decker, accompanied by Tyler McAdams, infiltrates a college's elite mathematics circle to uncover an operation that transforms bright students into calculating criminals.

A cold case turns red hot, threatening to consume everyone it touches, when a billionaire genius sees similaries between the fifteen-years-ago execution style murder of her favorite teacher, and the recent murder of a Hollywood music producer.

"Over the years, Peter Decker and Rina Lazarus have got through a lot together. They've faced more than their share of serial killers and psychopaths. But this time two very different cases may cause them to re-evaluate everything they hold dear. One case involves Gabe, the troubled boy they've taken into their home. The other is much stranger - a man is found dead in his apartment, apparently mauled by his pet tiger. There is more to each case than...

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...