A well known Parisian inspector becomes involved in an investigation while on holiday.

In a small Breton town, a 10-year-old girl is found murdered. René, her art teacher, a professional painter, is the last person to have seen her alive. The inspector in charge of the investigation immediately questions him. In this small provincial town where people all know each other and regularly meet at the Bar des Amis, René is increasingly unsettled by the other inhabitants' suspicions and by the inspector's investigation. Children stop coming to him for lessons. His wife, Viviane, a district nurse, protects him and supports him with her love. However, a self-centred media-star writer adds to René's confusion...

The film's title is a pun, the double meaning referencing both the "wrong genre" and a person with distasteful motives. Insecure novelist Martial Bok promotes his new sexy novel La Fille de Dos ("Girl Observed From the Rear") with a round of book-signings and talk-shows. When beautiful hat designer Camille buys the book, Martial follows her and spies on her as she reads his book and removes her clothing. It's the beginning of his obsession and also an inspiration. After Martial's live-in girlfriend Lucie establishes contact with Camille for real, Martial is able to type out another sexy manuscript.

Mathilde, despite her nurse's diploma, is a thirty year old struggling when it comes to work. She discovers poker when she becomes pregnant. Her nickname, La Tueuse (The Killer), is due to the pitiless way she destroys her opponents at the gaming table. But Mathilde becomes addicted to the game and her life turns upside down.

In 1892 Diane arrives in Paris to search for her missing sister. To learn the fate of her sister she auditions for the quadrille at Moulin rouge.

Following the death of their best friend, four guys and the dead men's sister steal his body and burn it on a beach in Italy to fulfill his last wish.

Investigating judge at the 3rd Criminal Chamber of Marseille, Françoise Larchey is the wife of Jean-Pierre Larchey, a famous architect of the Coast. The couple has a son, Valentin, seventeen years old... The death of Edith Mesniel, a local political figure, puts the town in turmoil. But when Emilie, Edith's only daughter and Valentin's girlfriend, confides to Françoise that her mother's death was not accidental, Madame le Juge decides to look into the case. By attacking this case, Françoise disturbs many people. She receives death threats, her son and Emilie are also threatened but she refuses to give up. And she discovers little by little that the mafia infiltrated in all the country.

Just before taking an irrevocable and tragic step, Caroline talks to Claire, her lycée friend. Later, Claire gathers five other school friends, and tells them Caroline's secret. The six agree to wage a guerrilla war against their philosophy teacher, the sarcastic and belittling M. Terrien, the cause of Caroline's despair. After seeking advice from Mayard, the school's guidance counselor and a leftist with a police record, the six look for evidence that could get Terrien fired. They strike gold, and then raise the stakes. Sarah, one of the six, hatches a deadly plan.