Sangwoo, a forty-something year old man who recently lost his job, does not let his wife know about the layoff. He kills time by riding on a subway all day long. One day, he bumps into a homeless woman holding a baby bagging for money. Reminded of his own baby to be arriving soon, he starts to worry. He witnesses the woman begging passing on the baby to another homeless as a prop. He gets into a fight with her but only gets embarrassed.