Elisa Brown is on the long drive home after visiting her son's grave when the crack in her windshield vanishes. She notices other changes too. Her body is curvier; her clothes and car are different. Back home, she has a new job, a sturdier marriage, and disturbingly altered sons. Has she had a psychotic break? Or entered a parallel universe? Her quest for answers hinges on seeing herself as she really is--something that might be impossible for Elisa, or for anyone.