The Promise(2021)

The Promise is a French crime series that begins on Boxing Day 1999, when 11-year-old Charlotte Meyer vanishes without trace. Captain Pierre Castaing leads the investigation but hits a dead end, leaving the case unsolved and haunting his career. Years later, hundreds of kilometers away, a young investigator encounters a strikingly similar disappearance. As the two cases intersect, she uncovers connections that suggest the mysteries may be linked. The series weaves between past and present, following the investigators as they pursue answers to crimes that have defined their lives. Tension builds as buried secrets surface and the truth behind the disappearances threatens to upend everything they thought they knew.