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.
2020
1897
1947
2019
2000
1971
2015
2018
2012
2010
1942
2017
2016
2023
2002
1937
