Park Sun-a

How do you go about detaining a total stranger for 12 hours? This is what Ha-young (Lee Yo-won) has to do for her best friend, Mi-ryung (Kim Min-hee). Mi-ryung has been planning for a surprise party for her overseas boyfriend Jun-woo (Shin Ha-gyun), but her plans are stopped short when her father finds out that Jun-woo is half-Hawaiian, and forbids the party from being held. Mi-ryung is put under even greater pressure when Jun-Woo tells her that he would arrive early, and she pleads with Ha-Young to intercept Jun-Woo at the airport, and to keep him from turning up at Mi-ryung's place before she can iron things out.

性格の優しい大学生のキョヌは夜の地下鉄ホームで美しい“彼女”と出会う。でもその時“彼女”は泥酔状態。酔っぱらい女は嫌いだったが、車中で倒れている“彼女”を放っておけず仕方なく介抱してホテルへ運ぶ。ところがそこに警官がやってきてキョヌは留置場で一晩を過ごすハメに。翌朝、昨夜の記憶のない“彼女”は怒ってキョヌを電話で呼び出した上、詰問するのだった。しかし、これがきっかけで、そのルックスとは裏腹にワイルドでしかも凶暴な“彼女”に振り回される、でもキョヌにとっては楽しい日々が始まるのだったが…。