After the death of her beloved twin brother, Felix, and the breakup with her longtime lover, Nathan, Greta Wells embarks on a radical psychiatric treatment to alleviate her suffocating depression. But the treatment has unexpected effects, and the Greta of 1985 finds herself transported to remarkably similar lives in different eras?as a bohemian and adulteress in 1918, and a devoted wife and mother in 1941?fraught with familiar tensions and difficult choices.

Traveling through time, the modern Greta learns that each reality has its own losses and rewards, and that her alternate selves are unpredictable, driven by their own desires and needs. And as the final treatment looms, one of these other selves could change everything.

Magically atmospheric, achingly romantic, The Impossible Lives of Greta Wells beautifully imagines "what if" and wondrously wrestles with the impossibility of what could be.

Andrew Sean Greer is the bestselling author of The Story of a Marriage and The Confessions of Max Tivoli, which was a Today book club selection and received a California Book Award. He lives in San Francisco.