On a blistering June morning, a retired police officer flies his drone over the Bosham mudflats and spots something the tide has left behind: the body of a young woman curled in the shallows. She carries no ID, and no one has reported her missing.
DCI Beniamin Dinescu and his team begin a puzzling investigation centred on the impossible homecoming of a seventeen-year-old girl. For Dinescu, nothing is straightforward in this case, and nothing is as it seems.
The team must challenge a version of events built on lies and long-held secrets. What will they uncover, and who has the most to fear?