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?
At an empty house in a quiet residential area, 5 people gather outside to break into the home. The five people are Tanaka (Oji Suzuka), Misaki Kubo (Maika Yamamoto), Kenzo Ogawa (Ken Mitsuishi), Kanae Hara (Yumi Asou) and Toru Kuribayashi (Toshiki Ayata) and they each applied for the same illegal part-time job. As they move about in confusion to get inside, they seem like amateur burglars. Their goal is to open a safe in the house, but it isn't for them. As they get close to opening the safe, they then encounter a crisis. They all get into the van to flee from the area, but they hit a person. The group continue to leave the area after they hit the person. but a mysterious man witnesses these 5 people's escape. The 5 people are then blackmailed to act like a family to commit more crimes.
