Murray and Momo are twins. When he was three years old, Murray and his mother went to the United States. Seventeen years later, Murray received a death notice in the university library. His younger brother Mo Mo, whom he had not seen for seventeen years, committed suicide. Mo Rui returned to China alone to investigate the cause of Mo Mo's suicide. In the process, he accidentally discovered Mo Mo's secret. Mo Mo had been secretly in love with a man since he was fifteen years old...