Who knew that one night out would change everything?

As a financial analyst, Rachel Bai is more comfortable with numbers than people. When her boss promotes her to head a team in San Francisco, his message is clear-she has one year to build a successful team and become an effective leader. Rachel sets out to discover how to be more comfortable interacting with people, but a drunken night meant for research results in a mechanical bull ride and a one-night stand with a sexy stranger-definitely not part of her plan.

Attorney Luke Trudeau is intrigued by the mysterious woman who's determined to put their night together firmly in her rearview mirror. So when Luke sees Rachel again, he proposes a deal: he'll smooth out her rough social edges and teach her to charm clients if she'll help him devise a financial plan to open his own practice.

It seems like a win-win, but Luke breaks the rules by falling in love. Can he convince Rachel that what they have is real and, when it comes to love, there are no set rules?