Two rival detectives with different methods try to solve the murder of a missing girl after discovering her mutilated body in the tidelands of Incheon.
Hee-jung hopes to leave Daegu and transfer to a university in Seoul. She works at a ticket office for paddle boats to save up for her tuition. One day while she dozes off, someone attempts suicide.
Ahead of the age of 30, the second daughter, Jin-young, who is still preparing for employment, a blunt father who is more comfortable resting in a folding chair in factory than at home, and the mother is the only one who ties this incommunicative father and daughter together. One day, the accident...