When the local pathologist asks DI Lorne Warner and DS Katy Foster to attend the scene of an accidental explosion, it's not long before the capable detectives find that the victim was murdered aboard his boat before the "accident" occurred. Delving into the victim's past leads Lorne across the county border into Norfolk, where she calls upon her good friend DI Sally Parker to assist in the investigation. What the joint team reveals about the victim's extended family blows them away. Can Lorne and Sally find the crucial evidence in time to prevent the notorious family from carrying out their own twisted justice to sustain their wealth?