Lee Yeon-woo is a very successful lawyer with high salary. She was a woman who never felt the need to get married. But, one day, her glossy life completely changes. She was a successful single lady, but her life changed in just a blink of an eye. She is reincarnated as a middle-aged woman who has the same name as she does. Leading a life as a married woman is tough! Will she be able to lead a life as a married woman? It's absurd, but she's gonna give it a shot! It's the new movie 'Wonderful Nightmare.'