Exercise may lead to you being brutally murdered! DCI Fenton is back to catch another serial killer. If you're a 'retired' prostitute and go to the gym, then this killer does not discriminate - man or woman, you could be next! The first victim is found in a Soho back alley and before the forensic reports come back, there is a second victim. Fenton and his team will need to do some old-fashioned detective work before the body count gets any higher, provided the overtime gets sanctioned. Fenton's team discover all the victims are linked to a notorious strip club, run by a glorified brothel madam, and a trendy experience gym, owned by a bisexual bulimic with good shoulders. A new addition to Fenton's team hides a dark past that connects him to the murders. To keep his secret, he puts himself in danger. Can Fenton protect his team? With the killer's motives unclear, Fenton must fight off another press attack from an old adversary. Are the victims being killed for their history of sin, their hatred of carbohydrates, or does the killer have a more bizarre plan in mind?