During your French vacation in Nice, you meet Yoongi and think it's just going to be another romantic affair. Yoongi was on a mission at the time. He turns out to be a ruthless contract killer and the terror of global terrorism, working for the Korean government. After meeting you, Yoongi seriously falls in love with you and decides to end his past. Yoongi preferred a quiet family life with you. You don't even know about his past. Well, as they say, there are no former mercenaries..... Three years later, while continuing to enjoy your happy marriage, both of you suddenly find out that your friendly neighbors are totally mobilized to hunt for the head of the family — a reward of $ 20 million is announced for Yoongi's head, and all the professional killers want to kill him and have been preparing for this all three years.