His former triumphs fade against the backdrop of a crumbling personal life and dwindling creative energy. Stuck in his fifth marriage, enduring humiliating affairs and deceiving above all himself, he is suddenly pulled into a risky scheme where scientific ideas, human frailties, and global challenges are interwoven into a single, at once funny and bitter, tangle. Sunlight—the inexhaustible resource of energy—becomes not only a hope for saving the planet, but also a reflection in which the hero is forced to see his own shadow.