1941. In the chaos of wartime Marseille, American engineer—and occult disciple—Jack Parsons stumbles onto a clandestine anti-Nazi group, including Surrealist theorist André Breton. In the strange games of the dissident diplomats, exiled revolutionaries, and avant-garde artists, Parsons finds and channels hope. But what he unwittingly unleashes is the power of dreams and nightmares, changing the war and the world forever.

1950. A lone Surrealist fighter, Thibaut, walks a new, hallucinogenic Paris, where Nazis and the Resistance are trapped in unending conflict, and the streets are stalked by living images and texts—and by the forces of Hell. To escape the city, he must join forces with Sam, an American photographer intent on recording the ruins, and make common cause with a powerful, enigmatic figure of chance and rebellion: the exquisite corpse.

But Sam is being hunted. And new secrets will emerge that will test all their loyalties—to each other, to Paris old and new, and to reality itself.