Jota is a teenager who found an anonymous package at the entrance to his house. He discovers that it is a box with 7 cassette tapes recorded by a guy in which he wants to explain the reasons why he has died.

Jota is a teenager who comes back from the Institute an anonymous package addressed to him at the entrance to his house. Opening it, he discovers that it is a shoe box with 7 cassette tapes recorded by a guy who seems to know him very well, and in which he wants to explain the reasons why he has died. But the really strange thing is that he says that he had to die for him - to save him.