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.

At the age of 39, Nina finds herself a trainee nurse under the orders of Léo, a 15-year-younger "girl" with a difficult temperament, and Dr. Proust, who likes to scare her ... Not easy ! Especially for all, Nina is the wife of the boss, Costa Antonakis, his ex with whom nothing is really settled despite their divorce. But after healing Lily, their daughter, for ten years, nothing scares Nina! With years spent in hospitals in contact with doctors such as nurses and health-care aides, Nina, the daughter of a great internist and a renowned obstetrician, runs the risk of disappointing them to trace her own path in the hospital universe to which she can not really escape ... Listening and care as a profession of faith, the desire to live and love as a prescription ...

Gabriel Cauvy contends with the sudden death of his wife, Rebecca, in a suspicious car wreck. When the police blame the crash on Rebecca for drunk driving, Gabriel sets out to clear her name, but his search for the truth is more dangerous than he could have imagined.

Claire is surprised when she gets arrested for the murder of her childhood friend after she returns to Montpellier.

The Cordier fight in family against the crime: the father is police captain, the son, investigating judge and the girl, a journalist.

Josephine Delamarre is a guardian angel that Heaven sends to earth. With her psychological insight, ability of persuasion and magical powers, she manages to help people who have problems. She appears at the beginning of each mission; when the mission is completed, she disappears with a click of her fingers.

The Section de recherches is a special unit of the Gendarmerie nationale, responsible for the most complex cases. In Bordeaux (from 2006 to 2013) and then in Nice (since 2014), child abductions, disappearances, heinous or sexual crimes are the daily lot of the investigators in this research unit. In the search for witnesses, the team is authorised to extend its investigations beyond France's borders.

Claire is surprised when she gets arrested for the murder of her childhood friend after she returns to Montpellier.

Murders in... is a collection of French-Belgian police TV movies taking place each time in a different French city and region.