Frances Cairnes begins her search for the person whohuged her six-year-old son in a hit and run. DI Strangeways arrives on the Isle of Wight, hoping for a fresh start after the passing of his colleague.

Tracking down the man that she believes is responsible for the passing of her son, Frances sets out to inveigle her way into his home as she plots her revenge. Struggling to deal with his PTSD, DI Strangeways' takes a closer look at the investigation into Frances' son's passing.

Strangeways continues his own investigation into the case.

An unexpected turn of events threatens to derail Frances' plans.

DI Strangeways, blindsided by a surprising discovery, scrambles to find answers.