Every night, Fufu could hear regular knocking sounds coming from the basement. Her parents insisted that it was a water pipe, until she found a half-torn photo in a dusty photo album - a strange "sister" wearing a red dress and a bright smile.
When the red color in the nightmare overlapped with the old things gathering dust in the basement, Fufu realized that this old house buried not only debris, but also a "daughter" that the family was determined to hide. And the knocking sound getting closer and closer in the silent night, is it the request of the dead soul, or the lie of the living person?
