A stable worker resorts to heroin smuggling, deception, extortion, and murder to finance the purchase of the farm and foundation stallion that will provide a leg up on the horsey set's social ladder

The investigation into the death of a woman searching for the whereabouts of her late mother's antique ring leads Goren and Eames to a physician serial killer (Kevin Tighe) who has cleverly concealed the murder of over two hundred of his patients. Inspired by Harold Shipman murders.