In a fractured, near-future Los Angeles where a tentative peace has just been declared, a celebratory gathering in Emily St. John Mandel's novel Exit Party takes a surreal turn when a host mysteriously vanishes and uncanny doppelgängers emerge among the guests. As the reality of that fateful evening splinters across parallel timelines and decades, one woman finds herself caught in a dizzying search for truth stretching from the domed streets of Paris to a colony on the moon. Mandel weaves a haunting, genre-bending mystery that explores the thin lines between safety, surveillance, and the alternate lives we might have lived. Kirkus Reviews praises the book as "both a thrilling read and a virtuoso demonstration of the moral and philosophical possibilities of speculative fiction."