Sitting in a corner of the city is a seemingly normal shop called 'Time Photo Studio'. The shop owners, Cheng Xiaoshi and Lu Guang, can dive back in time through photos. One day, an uprising star in the Chinese opera world — Lin Kai — visited the studio and tasked Cheng Xiaoshi and Lu Guang to find a cassette tape from 10 years ago. They only have one photo, and one chance...