On New Year’s Eve, Yang Xi goes with Xin Pinfang to volunteer as a clown in a cancer hospital, whilst also spending time with her dying friend Axi. Axi however commits suicide by jumping out a window. Although Axi was a terminal cancer patent, and had suffered greatly, she had never given up hope for treatment. Xin Pinfang believes strongly that she would never have killed herself, and swears to find the murderer. After the autopsy, it is found that Axin’s body contained drugs. Why would she take drugs? Where did the drugs come from? What was her dying wish in the last stages of cancer?