Three days, three million. In order to save his sister from leukemia, undertaker Lin Yuan took over the task of trying to sleep in a haunted house. Before moving in, he received seven rules: don't turn on the lights after dark, don't answer when someone calls you, don't go out at three in the morning... He followed them. But those things in the house could tell his sister's name and his father's last words. Later he discovered that the person who wrote the rules was not here to save him.
