Canon Daniel Clement's life unravels when his mother, Audrey, arrives unannounced, and one of his parishioners, Anthony Bowness, is found dead. But as Clement investigates the man's death, he begins to receive threats and questions who he can trust.

As the personal threats against him intensify, Clement digs deeper into Anthony's murder, clashing with DS Vanloo, who disagrees with his methods; a new revelation forces Clement to face the fact that the killer lies within his own congregation.