Christopher Reynolds has been the reigning British cage fighter champion for the past two consecutive years. The next time he goes into the cage to defend his title, he demonstrates to his opponent in the first few minutes why he’s earned the nickname, Raging Reynolds. Christopher is fired up and on good form. His opponent’s blood is shed and it’s more than his male ego and pride on the line. When it looks like Christopher’s about to seal his victory, he freezes, puts his hand to his throat and collapses on the floor. When he’s pronounced dead and high levels of heroin are found in his blood stream, foul play is suspected. Unable to go the police, Christopher’s bereaved long-term partner, Ethan, turns to the AI team for help. As the ex-female karate champion in her county, Jane is the obvious person to investigate the case. The spirit of a junkie comes to her aid and leads her to a potential culprit, but when she gets too close to them, she finds herself in the cage with them, and then she’s the one fighting for her life so that justice can be served.