Jean and Paul are identical twins. Outsiders, even their parents, cannot tell them apart, and call them Jean-Paul. The mysterious bond between them excludes all others; they speak their own language; they are one perfectly harmonious unit; they are, in all innocence, lovers.

For Paul, this unity is paradise, but as they grow up Jean rebels against it. He takes a mistress and deserts his brother, but Paul sets out to follow him in a pilgrimage that leads all around the world, through places that reflect their separation―the mirrored halls of Venice, the Zen gardens of Japan, the newly divided city of Berlin. The exquisite love story of Jean-Paul is set against the ugliness and pain of human existence. Gemini is a novel of extraordinary proportions, intricate images, and profound thought, in which Michel Tournier tells his fascinating story with an irresistible humor.