The old lady upstairs often brought me eight-treasure porridge, but I was wary and never ate it. One time, the toilet became clogged after porridge was dumped. During maintenance, they took out a cloth bag with my name on it. I immediately chose to call the police. After investigation, the police rescued the old lady's biological daughter who had been detained for a long time in her home. This room, Room 302, is specially rented out to girls living alone. I am not the first person to be targeted. Following the clues, I found that even my aunt, who had been missing for twenty years, was related to this family. Some seemingly well-intentioned gestures may contain unpredictable dangers.