Dong-chul, a thug who cannot fight but acts like a tough guy, meets Han Se-jin, his new neighbor. Dong-chul is intrigued by her spitfire personality, and the bickering duo realize they may be perfect for each other.

Betrayed and on the run, a former North Korean agent tries to seek revenge on the man who killed his wife, find his missing daughter, and uncover the secrets hidden inside the eyeglasses of a dead man.