Anna Choi is a pro at being the "perfect woman." As a top operative for the Bachelor Rescue Society, her job is to step into the lives of high-powered men in need of a reputation overhaul. Her role is simple: play the devoted partner, follow the script, and never, ever fall in love.

Evan Park, also known as the "Icebox" of the city’s most prestigious law firm, is cold, calculated, and focused on one thing: a career-defining promotion. Being antisocial as one can be, he needs to have a sociable image. When a string of fate pulls Anna Choi as his rescue, he expects a professional transaction, a woman who will play her part and disappear.

What he doesn’t expect is for Anna to see through his frozen exterior so fiercely that he feels human for the first time in a decade.

As the lines between their staged romance and their anonymous chats begin to blur, a hidden identity threatens to change everything. With the shadows of the past creating a dangerous push-and-pull, Anna and Evan must make a choice: protect the contract, or finally listen to their hearts.