Three years ago, Queen Shen Zhao sang a song and disappeared into the sea of people. Three years later, a song "Night Boat" uploaded anonymously detonated the entire Internet. The voice was the same as before, but every word was weeping. Producer Jiang Yan restarts the recording studio in the dark, girl Zhou Tang secretly records the melody, algorithm judge Lu Huai locks the voiceprint, and the former betrayer Su Ling is frantically plagiarizing her soul. When Shen Zhao's singing penetrates the digital ocean again, she is not coming back - she is here to collect debts. Every melody is her testimony.