Ji Sun Woo is a family medicine doctor. She is married to Lee Tae Oh and they have a son. She seems to have everything, including a successful career and a happy family, but she is betrayed by her husband and others.

Meanwhile Lee Tae Oh dreams of becoming a famous movie director. He runs an entertainment business with the support of his wife Ji Sun Woo. Even though he loves his wife, Lee Tae Oh falls into a dangerous relationship.

In the late 1960s, C’est Si Bon is the music bar where every acoustic band’s dream lies. There Geun-tae, a naïve country boy, meets the young musical prodigies Hyung-joo and Chang-sik, and forms the band named after it — the C’est Si Bon Trio. As the three young artists bicker over their music, beautiful socialite Ja-young enters the picture and becomes their muse, and a series of moving love songs come from it. Geun-tae’s pure-heartedness wins Ja-young over but when she accepts a once-in-lifetime opportunity for a shot at an acting career, they part ways. After 20 years, the untold story of their love, song, and youth at C’est Si Bon is finally brought to light.

A seemingly happy family gets rocked by the suicide of the 14-year-old daughter.

A true story of a six-year-long legal conflict of 10 comfort women and 13 attorneys against 200 Fukuoka supporters association.