맨홀

This time-slip drama centers around Bong Pil and his five friends who travel between the past and present through a manhole in order to stop a wedding scheduled a week later.

A young girl is kidnapped by a serial killer. The serial killer uses manholes to kidnap and kill his victims. The young girl's older sister tries to save her before it's too late.

An artist dealing with the grief of his wife leaving him finds solace in painting the squalor of the sewer. He discovers a trapped mermaid, whom he brings home to heal. Her condition worsens, and she asks the artist to paint her before she dies.

Kawamura is a promising young man with everything going for him. On the eve of his wedding, he falls into a deep manhole. Despite sustaining a debilitating injury, he is determined to attend his wedding as planned, and resorts to social networks for help.