A six-part investigative documentary series in which journalist Monic Néron begins to shed new light on one of Quebec's rare double murders of unsolved teenagers; that of 13-year-old Diane Déry and Mario Corbeil, 15.

A six-part investigative documentary series in which journalist Monic Néron begins to shed new light on one of Quebec's rare double murders of unsolved teenagers; that of 13-year-old Diane Déry and Mario Corbeil, 15. In the company of the families of the two victims, Monic Néron tries to discover what could have happened on the evening of May 20, 1975.—Anonyme