Content : Toulouse. At the Cold Case Unit, 16-year-old Gaspard asks Captain Ruben Arcega to reopen a cold case. At school, Garance begged him to investigate the disappearance of her cousin Candice eleven years earlier... At the time, a serial killer nicknamed ‘The Eraser’ by the media was on the loose. His victims were young girls, whom he lured into the sewers and held captive... Only one escaped. Thanks to her testimony, the killer is rotting in prison. Could Candice be one of his victims, never identified? Gaspard and Ruben question the criminal. He denies any involvement but boasts of having entered the pantheon of evil. Shortly afterwards, he escapes. Is the Eraser back?