Wealthy jeweller Eliezer Samuel contacts half Greek half Scots PI Alex Mavros after his Uncle Aron is spotted in the streets of Thessaloniki in northern Greece: but that’s impossible - Aron Samuel perished in Auschwitz more than sixty years before. The case takes an even stranger twist when Mavros, accompanied by Eliezer’s enigmatic daughter Rachel, travels to Thessaloniki to question the elderly witness. Ester Broudo denounces Aron Samuel as a traitor and murderer. Was he really a Nazi collaborator? Mavros’ investigations will uncover tragic and terrible secrets from the war and its aftermath, resulting in devastating present-day consequences.