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.
1925
1978
2011
2013
1943
1974
1927
2009
2006
2019
2024
2022
2017
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2021
2018
2015
