When state police trooper Tessa Leoni claims to have killed her husband in self-defense, Detective D.D. Warren must investigate a difficult case when she discovers that Tessa's six-year-old daughter is also missing.

Although serial killer Warren Hoyt is behind bars, a copycat-at-large continues his legacy of murders performed with twisted medical techniques.

When Bobby Dodge, a sniper with the Massachusetts State Police SWAT team, saves a woman and her young son from her armed husband, he finds himself investigating the shooting of a man who had accused his wife of poisoning their son.

"Boston, 1976. In a small apartment above Kenmore Square, sixteen-year-old Daniel Fitzsimmons is listening to his landlord describe a seemingly insane theory about invisible pulses of light and energy that can be harnessed by the human mind. He longs to laugh with his brother Harry about it, but Harry doesn't know he's there--he would never approve of Daniel living on his own. None of that matters, though, because the next night Harry, a Harvard football...