Lee Ha-yeon is the wife of the heir to Ilsin Group and even so one of the richest women in South Korea. She is respected and enjoys the luxury of her penthouse. But one day she is found dead in a hotel room. The police thinks she had been poisoned and is investigating the case very secretly to avoid a scandal. But they have no clue what happened to Lee Ha-yeon. They are no signs of a forced entry and there are no fingerprints at all. The police are even wondering what Ha-yeon did in this hotel room. But the police is joined by Ha-yeon's estranged sister Ha-jong who received a camera from her sister just shortly before her death. The camera reveals that Ha-yeon had several sex chats and meetings. And they also get to know that Ha-yeon had been blackmailed and finally they witness how she was killed. Ha-jong feels guilty as she couldn't help her sister and she becomes desperate to find the murderer.
Jae-mo leaves the world behind and takes refuge in a remote fishing village. Out of nowhere, Soo-bin comes into his life. Their relationship is purely physical at first but their love intensifies as they begin to deeply understand each other's pain. Soo-bin unwittingly discovers sheets of music that Jae-mo had written and realizes that he was once a composer. She decides to help him fulfill his dream by returning to Seoul. Her only consolation in returning to the city she hates most is the fact that they will be together.
A heist movie about three groups of thieves who independently plan to rob the same bank on the same day, which causes no end of pandemonium and confusion, or does it?