Cho Yeo Hwa has been a widow for 15 years. Her in-laws are the most prestigious noble family in the kingdom. During the day, she leads the life of a widow devoted entirely to her dead husband's memory and rarely ventures outside the gate of her home. At night, Yeo Hwa dons the mask of Hero, who secretly jumps over the surrounding wall to save the helpless.

A film director who no longer makes films arrives in Seoul to meet a close friend. When the friend doesn't show up, he wanders the city aimlessly for three days, grabbing drinks and meeting women, with each day playing out like a version of the last.