Jo Dal-hwan plays Lee Ho-yeon, a salesman from a pharmaceutical company who is very people-shy.

Get caught up in the tale of a new stock broker who dreams of becoming rich. Those dreams make him susceptible to a stock market scam that threatens to get him in trouble.

Kang Woo-ram is busy preparing to get a job. Lee Hyun-ji is a would-be anchor, but she works at a homemade hamburger restaurant. One night, Woo-ram visits the hamburger restaurant and orders a double patty hamburger, which has a "buy one, get one free" sale. This is how their relationship begins.