A 14-year-old boy vanishes on his way home from school. His frantic mother receives a ransom call: pay or else. It's only hours before the deadline, and the police have no leads. Enter Timothy Blake, codename Hangman. Blake is a genius, known for solving impossible cases. He's also a psychopath - the FBI's last resort. But this time Blake might have met his match. The kidnapper is more cunning and ruthless than anyone he's faced before. And Blake has been assigned a new partner, a woman linked to the past he's so desperate to forget. Timothy Blake has a secret, one so dark he will do anything to keep it hidden. And he also has a price. Every time he saves a life, he takes one ...