Ha Junseo was once a rising star in the classical music world. Now, he manages the career of a more successful friend while drowning his own regrets in clubs and alcohol. After a drunken one-night stand with a stranger, Junseo blacks out, only to wake up in the home of a large, scarred man named Kang Wujin. "You don’t remember me?” Something about Wujin feels off, and Junseo tries to run, but the man only smiles ominously. “See you soon, Ha Junseo.” Days later, Wujin reappears as Junseo’s new boss. Trapped under his obsessive watch, Junseo must figure out who Wujin really is and whether escape is even possible.