Park Jin Sung runs an odd little late-night restaurant where customers only choose which drinks they want and their appetizers are chosen by Park, who customizes the dishes to match their drinks. His goal is to provide diners with warmth and comfort through delicious food and excellent customer service. Seeing customers enjoy their food also gives him a great measure of happiness. At the urging of one of his regular customers, Park becomes the host of a new variety show called Midnight Snack Couple, which shoots him to popularity and fame.
Regular customer Kim Ah Jin is a passionate PD. She usually has a smile on her face and always looks on the bright side. Her optimism is only matched by her love of food and drinking. After working hard as a crew member in production teams for many years, she finally gets her break as a PD when she convinces Park Jin Sung to become the host of her TV show.
Kang Tae Wan is a successful fashion designer. He hosts his own fashion TV program and comes to know Park Jin Sung and Kim Ah Jin when he’s brought onto the Midnight Snack Couple variety show as a stylist for Park. As the three work together, they eventually become involved in atypical love triangle.
Yoo Ji Cheol makes a difficult decision to become a bad person in order to become a good father.
He used to be a top boxer, but he lost everything in a heartbreaking moment. All his hard earned money and fame vanished overnight. After hitting rock bottom, he decides to gain control of his life again through mixed martial arts.
Lee Seon Yoo is training to become a nun. Right before she finally achieves her dream, she learns that her beloved older sister Jin Yoo has died. Jin Yoo was betrayed and killed by her lover, Jang Tae Jung. Tae Jung, a smart, good-looking man from a humble background, had committed himself to lure and marry a tycoon's daughter "against all odds," as part of an effort to get him into the upper class of society.
Seon Yoo then meets Seo Ji Seok, an immature man from a rich family whose sister, Ji Hee, is married to Tae Jung. Ji Seok is at risk of losing the inherited family business to Tae Jung and Ji Hee since Ji Seok's mother is the family patriarch's second wife.
To take revenge on the man responsible for her sister's death, Seon Yoo gives up her dream of becoming a nun. She marries Ji Seok and becomes Tae Jung's sister-in-law. Thus, Seon Yoo begins leading a double life: she pretends to be the ideal wife and daughter-in-law in front of the Seo family, and only takes off her mask in front of Tae Jung, proving she can be just as ruthless and vicious as Tae Jung. Seon Yoo wears her angel wings while hiding the dagger of revenge.
Lee Seon Yoo is training to become a nun. Right before she finally achieves her dream, she learns that her beloved older sister Jin Yoo has died. Jin Yoo was betrayed and killed by her lover, Jang Tae Jung. Tae Jung, a smart, good-looking man from a humble background, had committed himself to lure and marry a tycoon's daughter "against all odds," as part of an effort to get him into the upper class of society.
Seon Yoo then meets Seo Ji Seok, an immature man from a rich family whose sister, Ji Hee, is married to Tae Jung. Ji Seok is at risk of losing the inherited family business to Tae Jung and Ji Hee since Ji Seok's mother is the family patriarch's second wife.
To take revenge on the man responsible for her sister's death, Seon Yoo gives up her dream of becoming a nun. She marries Ji Seok and becomes Tae Jung's sister-in-law. Thus, Seon Yoo begins leading a double life: she pretends to be the ideal wife and daughter-in-law in front of the Seo family, and only takes off her mask in front of Tae Jung, proving she can be just as ruthless and vicious as Tae Jung. Seon Yoo wears her angel wings while hiding the dagger of revenge.