Quinn Braverman is keeping two secrets from her loving husband, Lewis. One is that the real reason she chose him over Eugene, her neurotic, semi-famous ex-boyfriend, was to prove to her mother that she could have a happy, stable relationship with the guy next door.
The other is that Quinn knows another life exists in which she made the other choice and stayed with Eugene. The two lives run in parallel lines, like highways on opposite sides of a mountain. There, on the other side, the Quinn who stayed with Eugene is speeding through her high-drama, childless life in Manhattan. Here, the Quinn who married Lewis lives in the suburbs, drives a Volvo, and has an adorable young son with another baby on the way.
But the important part of the secret—the part that terrifies and thrills her—is that she knows it's possible to cross from one life to the other. So far she’s played it safe, never venturing over to see what’s on the other side. Then a shocking turn of events rattles Quinn to her very core, and she makes the reckless choice to finally see what she’s been missing.
There, she not only rediscovers her exciting single life, but meets the one person she thought she’d lost forever. Her mother.
But Quinn can’t have both lives. Soon, she must decide which she really wants—the one she has…or the other life?