The BBC's latest drama series comes to a close this evening, as Jackson tries to help a teenage boy discover the truth about his mother's death. Y'see, young Aiden has never been entirely convinced by the deathbed confession of the serial killer who was convicted of his mother, so he asks the Private Investigator to take another look at what happened. Of course it couldn't come at a worse time: Sure aren't Jackson and Louise only getting themselves back on track as friends?