Harry is called out to a death at a racecourse. A jockey was killed when his horse pulled up and fell, crushing him to death.

The police and Harry find that a group of doctors are in a syndicate that owns race horses. One is a kidney Specialist and another is a Plastic Surgeon with a gambling problem. A young woman is going to pay for a kidney transplant privately as the National Health Service wait list is long. She and her husband wish to have a baby after that. There is a helicopter accident and it all becomes a complicated story to figure out for the team of Pathologists who have a temporary visitor called Nicki who is borrowing the lab to obtain a narrative about an Iron Age family whose bones she has to examine.

Pregnant Karen Sawyers is murdered and her blood-stained husband Pete found wandering the streets but DI Naomi Silva turns her attention to Karen's lover, Adam Hayes, who was treating her at his clinic and had arranged for her to have a termination. Then Adam is also found dead. Clarissa finds evidence that Karen was being blackmailed with threats of Pete getting her medical records. This leads Naomi and Nikki to hospital head Simon Laing, who tells them a computer hacker calling himself Splinter stole patients' files though Simon kept it quiet for fear of tarnishing the hospital's reputation. Meanwhile barrister Jason Farrell is viciously attacked and left to die.