A young nurse arrives at late night, after she answered a newspaper's ad. She is studying architecture too. Crossing the park, she sees a man is looking at her from a distance, discovering that he is the sick man who she will be taking care of Liang, his wife, gives to the nurse the instructions to make the two injections to calm down her husband's pains: the first at 3 am and the second at 6 am. The man was stabbed the stomach. He likes to play with money, but he doesn't pay his gambling debts. During the night, when the nurse is going to give the first injection, someone knocks at the door, scaring her. The syringe falls onto the floor, breaking. The nurse steals a big ring from his finger, and she throws the second injection into the waste bin, she doesn't care about the man. Liang arrives in the early morning noting the syringe is in the waste bin and noticing her husband finger is missing the ring. The nurse swallows the ring. Liang says to her husband is dead. The nurse faints falling to the floor. When she wakes up, she sees two people are taking away the body to cremate it.