The friend Cheong Ah plans to meet at the train station is Joon Kyum, a boy from a well-off family. The two teens plan to commit suicide together. They enjoy their last meal together and return to the small room they have rented, where Cheong Ah falls asleep. When she wakes up in the middle of the night, Joon Kyum is gone and only a letter remains. Cheong Ah calls her mom for help, who tells her to make everything look like an accident.