Jung-ho, a son who lives with his mother in a single room in student accommodation, learns of the existence of a new credit card his mother made secretly. Now, he decides to take extraordinary measures.

Su-han takes his final bath as the bathhouse closes. In the emptying space, he comes across traces of the past, and long-faded memories resurface. The once-familiar place grows distant, and as what remains and what disappears intersect, the past flickers like a wavering haze.

20 years after discharge from the army and now an excavator driver, a former paratrooper who had been mobilized to suppress the May 18th Democratic Uprising in Korea in 1980, happens to find a skull in the ground one day. Driving his excavator, he pays visits to his former superiors one by one and realizes they were all both assailants and victims of the times.