At Struthof in Alsace, the only Nazi concentration camp opened on French territory, writer and political deportee Pierre Delmain takes on a defining role: with his bare hands, he ends the lives of deportees when their condition makes them unfit for the 'scientific experiments' conducted on site. He does it with gentleness, empathy, humanity. He doesn't forgive himself for it. So he escapes. In his dreams. In Paris, Saül Bernstein, an art collector, delays in the vapors of mescaline and contemplation of beauty the moment of believing in the extreme horror tracking him down.