An anonymous note launches ex-FBI criminal profiler Decimus Farr into a nightmare. He fiancée has been kidnapped, and Farr is given only twenty-four hours to follow and solve a trail of ten hidden clues, or she dies. Identifying the abductor could provide Farr with a vital shortcut for locating his fiancée. But with each new clue connected to a different criminal from his past cases, which offender should he pursue? With the window closing fast, Farr must race the clock to rescue his love…or be consumed by the madness and violence he had thought left behind.