Bodies are being exhumed at King's Lynn's cemetery, the bones moved to higher ground to avoid flooding. But when the coffin of murdered pub landlady Nora Tilden is hauled up into the light there's a grim discovery: the twisted corpse of a young black man, dumped in the grave on the night Nora was buried. Who was this young man? Was he the victim of a racist crime? When DI Peter Shaw, DS George Valentine and their team are put on the case their investigation first leads them to The Flask, Nora's pub, where it's soon clear no one can be trusted. Will Shaw and Valentine be able to get to the truth behind the murder before it’s too late?