Seo Yeowon, desperate for money, starts a high-paying caddie job at Royal Golf only to find that it’s a private country club where only the most powerful and wealthiest people are allowed. Yeowon caters to the guests' whims and catches the attention of the mysterious and ominous Jang Giju, who makes him a lucrative offer he can't refuse, changing the course of both their lives. Can Yeowon handle Mr. Jang’s eccentric and prolific tastes?