All families have secrets. This one died for them. When D.I. Matthew Denning is called to a house fire in North London, he expects a tragic accident. Instead, he and D.S. Molly Fisher arrive at a scene of unimaginable horror: the bodies of the Galloway family—Brian and Ellie, their adult children Simon and Amber, and nine-year-old grandson Caleb—lying dead in the ruins.