It tells the story of a visionary living in fantasy and a girl named Naskinka meet and meet on the St. Petersburg Bridge, followed by four nights of dating and communication, and the pursuit of love binds them together. make them become bosom friends and even lovers, but it is the commitment and care of love that brings them back to their respective places. The dreamer still lives in fantasy, while Nasjinka marries her beloved. However, the instant collision between heart and heart becomes eternal. Based on Dostoevsky's love novel, the film can be regarded as a good guide to the masterpiece, but its artistic achievement is inferior to that of the Vesconti version in 1957.