A fake date. A real mistake. A forever consequence. Ness Riley is reinventing herself. She had no choice but to flee California after her fiancé left her for her own sister. Luckily, she meets Matt Keys, her neighbour. He’s got a great job, great cat, great…biceps. He’s the perfect guy to introduce her to the real London. When her parents show up demanding Ness attends her estranged sister's wedding back in the US, Matt jumps at the chance to be neighbourly. She can’t show up alone. Matt needs a favor. It’s a win-win. But after a drunken meeting during the bachelor/bachelorette party in Vegas, Ness and Matt wake up with hangovers, questions, and shiny new rings. Annulling the marriage is the smart thing to do. The wedding was an accident, after all. Only, now they’re falling for real. Ness knows ending the relationship will ruin her, and change her life forever. But it just might ruin Matt, too.