After the defeat of Nazi Germany in 1945, only a miniscule number of the SS perpetrators of the genocide of European Jews were ever brought to justice. The rest, the ones who did the actual killing, were allowed to escape into obscurity and think they had gotten away with mass murder. But what if some didn’t get away with it? What if many years after the war, a specter from the past suddenly arrived bent on vengeance?In 1943, young Adrien Weiss watched in shocked helplessness as his mother, father, baby sister and grandfather were slaughtered on the railroad platform at Sobibor Nazi death camp. By pure chance, he survived the war and emigrated to Israel. Fourteen years after his family’s slaughter, he was no longer a callow, frightened youth but a highly trained and deadly man. He returned to Europe intent on revenge.