Yoo Ga Eun carefully plots her revenge after being betrayed by her husband and best friend.

Kim Bum Sang is a arts scholar who is crazy about virgins and is a supervisor of property assets. Heo Cho Hwi is a 29 year old woman who is always mistaken as someone who is crafty because of her natural-born sexiness. The story will be about how these two cross paths and how their chance meeting will cause turmoil for the both of them.

Suk Ji Soo is a kindhearted and thoughtful woman caring about the harmony of her family. Park Hae Jin struggles through many troubles and forgivness within his family. He doesn’t really like his father because he was born due to his father’s affair with another woman. Ji Soo and Hae Jin’s family in this drama are complete opposites…her family is happy while his family is not. Eun Ha is a girl with a cheerful personality and perfect skin with no wrinkles. She thinks importantly of people’s relationships and puts much effort into everything she does to make her family happy. The drama will be focusing on different family problems faced in modern day society.

Nam Sang-mi plays widowed police officer Lee Sun-ae who finds herself suddenly immersed into international espionage by Han Yoo-il (Dennis Oh), an undercover agent. Lee Joo-hyun plays Kang-Jun, who's recently transferred to the Criminal Investigation Department. He opens an old case involving Sun-ae's past that leads him to an entanglement between the current political/economic powers and their secrets. One of them, oddly enough, being Han Yoo-il. Who is this man? Why is he here?