Travelogue of two film historians Nikolay Izvolov and Sergey Kapterev who visit world film archives around the globe in search of a lost sound version of one famous Soviet cartoon. It's "The Post" made by Mikhail Tsekhanovsky in 1929 and based on a poem by Samuil Marshak. At first "The Post" has been released in a silent form and later Tsekhanovsky remade it with experimental music and narration by Daniil Kharms. At that moment it was the first Soviet sound cartoon and it was a success all over ...