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.
1939
2008
2009
2022
2023
2014
2005
2013
2019
2011
2018
1999
1912
2024
1920
2012
1986
