Yan Jun and Gu Yanli are twin brothers. In a car accident, the younger brother Gu Yanli was seriously injured and died, while the older brother Gu Yanjun fell into a coma. After waking up, Gu Yanli's wife Sheng Huaian could always detect some clues that Gu Yanjun was different from before. Later, she learned that Gu Yanli had passed away and Sheng Huaian suffered from mental illness...
