When she arrived at the Elysée Palace, Bernadette Chirac expected to finally get the place she deserved, she who had always worked in the shadow of her husband to make him president. Put aside because she was considered too old-fashioned, Bernadette decided to take her revenge by becoming a major media figure.

Husband does not understand his wife? Conflict with children? Do you want to be heard and stood in your place? Be afraid of your desires. In this family, everything changed places, including grandmother.

Despite her best intentions and hard work, a single mom with two sons just can't make ends meet and is forced to depend upon credit just to get by. Desperate, she can see only one solution left to save her family: stage a hold-up.

Christophe Perrin, a renowned oyster farmer in Arcachon Bay, is the victim of a murder attempt. His three daughters rush to his bedside, where he lies wounded and unable to manage L'Héritage, the family oyster farm.

Valentin D is a hot designer architect who claims to be an orphan because he is too ashamed to admit he is the son of working-class scrap metal merchants from the north of France.

Beneath her eccentric appearance, Captain Marleau is a formidable detective. Her Sherlock Holmes deerstalker cap, her character, her unusual appearance, her humor, her unpredictable behavior--Captain Marleau is not your average gendarme. She never rushes an investigation; she becomes the investigation and relentlessly pursues the suspects.

Police Captain Kader Cherif knows the city like the back of his hand, and, as someone could say, never leaves his duty, because his apartment located on the first floor of the building opposite to the police station. He is assigned to investigate unusual murders in Lyon. Of course, he is using only legitimate methods which sometimes seem to be unusual and are displeasing his new partner Adeline Briard, police captain as well.

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.

The series follows the adventures of lighthearted Jean-Paul Moulin, a police Commissaire, and his team as they solve crimes.