KT

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

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.

One holiday, the eldest daughter-in-law who picked up the keys to the van, escapes with her daughters-in-law one by one without her husband knowing.