When a bomb explodes in a van parked outside a Liverpool mosque, local police suspect it to be a racially motivated attack carried out by local right-wing extremists. However, as Detective Superintendent Alec Ramsay's investigation deepens, he uncovers a simmering feud between two families that goes back decades. Ramsay finds himself struggling to bring the real killers to justice, as international political concerns mingle with the personal motives of revenge and retribution at the heart of the attacks. The shocking events of the past have bound these two families together with bonds of hatred that will prove hard to break...