A tragic incident on a suburban St. Petersburg platform - the son of a popular Soviet composer dies under the wheels of an electric train. The investigation, which will take place in the House of Creativity, will confirm the well-known truth: in the art of weaving intrigues, people of artistic professions are able to surpass the most inventive criminals. But it's not just the vanity of envious people. The accident in the resort of Repin is suspiciously similar to a series of misfortunes that occurred almost a hundred years ago in the jungles of Central America. It was there that the founder of the composer dynasty sold his soul to the deity who would exalt and destroy his descendants...