When her daughter Chloé runs away from home, Jeanne is disappointed with the response of the police, for whom a teenager runaway is not a priority, and she realizes she can only rely on herself.
A blackmailer threatens to expose secrets about an unsolved murder in Doulac.
After 20 years away, Isabelle, a former climbing champion, returns to her village in the Alps for the funeral of her mountain-guide father. She decides to open up a new climbing route with the help of Kenza, her protégé - something she'd planned to do with her father. But the past and its secrets resurface through Antoine, a brilliant mountaineer who was Isabelle's first love.
In 1991, 24-year-old Detective Alexandre Falco has it all, a loving wife, a new-born daughter and his dream job. But one day out in the field, he is shot in the head. Falco opens his eyes again 22 years later to a changed world, where everything he once had is no longer as it was.
