Gao Ge (Sheng Yilun), born in the 1990s, is a tech geek full of whimsical ideas. In order to stop his mother (Yan Ni) from telling the world that his father is singer Luo Dayou, he takes his mother to Shenzhen to confront Luo Dayou. Unfortunately, he loses his mother after arriving in Shenzhen. While searching with his friend Doudou and editor Yu Wei, he not only meets his mother's former coworker, but also discovers his mother's crazy youth and legendary love story. Gao Ge finally clears up his misunderstanding of his mother and embarks on a journey to find his father with his mother.