When Hannah catches her boyfriend cheating on New Year's Eve, everything she's ever believed about love instantly vanishes into thin air. To make matters worse, she's also been voluntold to join her horrendous boss—the young CEO of Wouters, the extremely successful chain of department stores—on a two-week business trip to London. Their newest location in the UK has been underperforming, forcing them to fly in to do some damage control.

In London, Hannah desperately tries to ignore all signs that the most romantic day of the year is on the horizon. Because really, she has more than enough on her mind already without constant reminders of being suddenly single on Valentine's Day. There's her boss, who's actually turning out to be a decent human being. And there's the consultant he hired to overhaul the store's marketing strategy—why does she look so familiar? Between work stress and the anguish of heartbreak, Hannah can't help but ask herself: who in their right mind would add romance to this mess?