After killing a man in the line of duty, Detective Jim Hunter finds himself crippled by recurring panic attacks and bouts of claustrophobia. Desperate to pull his life back from the edge, Hunter throws himself into his job. So, when he's pegged to investigate the suicide of a college professor, he takes to the task with all he has left. In the process, he uncovers more than he bargained for. Now, framed for murder and running for his life, Hunter finds himself trapped in the middle of an international conspiracy that takes him from the back alleys of Chicago to the white sands of the Caribbean. With the help of a few unlikely allies, Hunter must avoid both the police and the mob if he wants to prove his innocence and unravel the mystery of the Martyr's Inferno.