It's peak season at Morzine-Avoriaz ski resort. French high mountain state police officer Constance Vivier and Swiss cop Andreas Meyer investigate the suspect death of a teenager, found freezing on a slope after an alcohol coma.
Justine, 40, is struggling to reconcile her family life and her job as a police officer in the serious-crimes squad. Then she's accused of stealing money during a raid that goes wrong.
