My name is Charlotte Spencer and, ten years ago, I married my brother's best friend. I haven't seen him since.

Charlotte Spencer grew up on the blue-blooded Upper East Side of Manhattan but she never wanted the sit-still-look-pretty future her parents dictated for her. Enter Colin Walsh, her brother's quiet, brooding, man-bun-sporting best friend, and with him a chance to escape.

He's far from Charlotte's dream guy as but they need each other for one thing: marriage. One courthouse wedding later, Charlotte's inheritance is hers to start a business in San Francisco and Irish-born Colin has a Green Card.

Ten years later, Colin drops a bombshell: the terms of their prenup state that before either can file for divorce, they have to live under the same roof for three months.

Suddenly this match made in practicality is about to take on whole new meaning...