After a groundbreaking presidential election, Jeff Tuche becomes the new President of France and moves in the Elysee with his family to govern the country.

Two couples, Pierre and Aimée, Éric and Pénélope, all share four years of friendship without cloud. Only concern, Penelope and Pierre have become lovers ... The situation becoming untenable, they decide to break. But after a final night of passionate love, fate plays a trick on them: Peter and Penelope each wake up in the body of the other! To protect their secrecy, they each find themselves having to live the life of the other. This is the beginning of the complications ...

Just as the disheveled and alcoholic filmmaker Ismaël embarks on a difficult new film project, his life is sent into a tailspin. His wife Carlotta, presumed dead for 20 years, come crashing back into his life creating chaos in his work and his current romantic relationship with the starry-eyed astronomer Sylvia.

May 1944, a group of French servicewomen and resistance fighters are enlisted into the British Special Operations Executive commando group under the command of Louise Desfontaines and her brother Pierre. Their mission, to rescue a British army geologist caught reconnoitering the beaches at Normandy.

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.

Longtime friends Guarrigue and Sénanques own a successful law practice in Paris. The dreaded businessman Pervillard is one of their clients. One night, Sénanques, who is in an unhappy relationship, meets Sacha. For her sake, he causes a political scandal involving Pervillard and puts himself in danger.

Julien, an honest policeman, is asked to infiltrate a terrorist organization. He soon meets the charming Brigitte. But soon, manipulated by his superior, Julien finds himself involved in a dangerous affair: a gigantic campaign of intoxication.

Upset by the death of one of her patients, Marie, a young nurse, decides to go in search of the relatives of the deceased. This is how she meets the gang of thugs of which he was a part.

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