Perfect Marriage" tells the life of Han Yi Joo, an artist. She was adopted by Han Jin Woong and Lee Jung Hye, the owners of the financial conglomerate Hanwool. However, Han Yi Joo is never loved by her foster parents or her sister, Han Yoo Ra. She always feels isolated from the family. Currently, Han Yi Joo is married to Jung Se Hyeok. However, she discovers that her husband, Jung Se Hyeok, loves her sister, Han Yoo Ra, instead of her. On the same day, Han Yi Joo has a car accident and dies. But when she wakes up, she finds herself back to the time when she got engaged to Jung Se Hyeok. To change her fate and seek revenge on her family, she decides to end her marriage with Jung Se Hyeok. Then, she approaches Seo Do Guk, the man her sister Han Yoo Ra wants to marry. Seo Do Guk is the grandson of the founder of Taeja Group, an intelligent and handsome young man. Han Yi Joo wants to sign a fake marriage contract with Seo Do Guk, and he agrees, but what he wants is for that marriage contract to become a real marriage. This marriage is full of secrets, plots, and heartache, where Han Yi Joo must face many difficult challenges to seek revenge and change her destiny. "Perfect Marriage" promises to bring viewers surprises and a range of emotions in the story of love, revenge, and the jouey to change fate.v