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.
2001
1988
1965
2011
1913
2013
2022
2023
2016
1973
1903
2012
2019
2020
2024
