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.

The daughter of one of the architects who built the Eiffel Tower gets framed for a murder that has taken place there, so she and her girlfriend embark on a quest across Paris to solve the mystery.

The Paris opera house is about to give a performance of Carmen, when a young usherette is killed in one of the boxes. Faustine must prove her fiancé’s innocence before it’s too late.

When Jeanne, the recognized sous chef of the Ritz Paris, discovers her son has been kidnapped, she must make some difficult decisions.

Victoire, the first female law student admitted to the Sorbonne, is accused of murder. Helped by her professor, she's in a race against time to prove her innocence.