Useful Ghost

It tells the story of a woman named Nat who died of air pollution and returned to her husband March as a ghost attached to a vacuum cleaner. She continued to protect him, but she had to face rejection and doubt from her family. In order to prove the value of her existence, she was forced to become a "useful ghost" to help clean up the ghosts wandering in the factory. In the process of interweaving absurdity and warmth, she uncovered metaphors about memory, forgetfulness and social repression.