Is Une affaire française coming back?

It is a news item that has marked the last decades. That of the Petit Grégory Affair. On October 16, 1984, Gregory, 4 years old, disappeared. A few hours later, he was found, drowned, in the Vologne, bound hand and foot, his cap covering his face. A murder which occurs within a family persecuted for years by a mysterious crow, author of anonymous letters and calls.