What should you do if the world has turned against you? When Father Anselm is asked this question by an old man at Larkwood Priory, his response, to claim sanctuary, is to have greater resonance than he could ever have imagined. For that evening the old man returns, demanding the protection of the church. His name is Eduard Schwermann and he is wanted by the police as a suspected war criminal. With her life running out, Agnes Aubret feels it is time to unburden to her granddaughter Lucy the secrets she has been carrying for so long. Fifty years earlier, Agnes had been living in Occupied Paris, a member of a small group risking their lives to smuggle Jewish children to safety - until they were exposed by a young SS Officer: Eduard Schwermann. As Anselm attempts to uncover Schwermann's past, and as Lucy's search into her grandmother's history continues, their investigations dovetail to reveal a remarkable story.