A young man receives a series of letters engraved with the symbol of a snake eating its own tail. Inside them are an impossible photograph, a key and the name of a street. To reach the end of the mystery, he will first have to discover its origin.
1953
2021
2015
2003
2010
1990
2019
1969
2016
2023
2022
2024
1979
1972
2025
