Arthur Hailey's Detective(2005)

Detective Sergeant Malcolm Ainslie, a Catholic priest turned distinguished investigator for the police, has agreed to hear the confession of a convicted serial killer sentenced to death in a just a matter of hours. What he promises to reveal to Ainslie is the truth behind the crimes and the reason he confessed to the one crime Ainslie doesn't even believe he committed. What unfolds between the two men is a serpentine trail into both men's pasts based on the bestseller from master storyteller Arthur Hailey.