Zheng Yulong was practicing singing late at night to prepare for a singing competition. He encountered a supernatural incident and later broke up with his girlfriend Xie Yangyang because of a photo of a strange girl named Shangguan Mei. He contacted Shangguan Mei through QQ on the photo and chatted frequently late at night, but he didn't know that Shangguan Mei had passed away long ago. Xie Yangyang tried to remind him many times to no avail, and he even disappeared because he prevented Zheng Yulong from attending the appointment. On the day of the finals, Zheng Yulong's voice was attacked by his opponent Liu Tao. Xie Yangyang appeared at the critical moment and won the championship with the song "The Day Does Not Know the Darkness of the Night". In the end, Zheng Yulong recognized his true feelings and chose Xie Yangyang, while Shangguan Mei's obsession dissipated in the face of true love.
