One day, a Wanderer appears on the doorstep of a young teacher Anya, who lives in a small seaside town. He calls himself her husband Artyom, who has gone missing. How does this man know everything that only Artyom knew?

December 1941. Leningrad. The story centers on the main character, who, together with other employees, saves zoo animals from shelling. The people themselves are on the brink of life and death, but they do not abandon the hippopotamus named Krasavitsa.