Étretat is a peaceful seaside resort in Normandy, France. Until the day Gilbert Maréchal, a local bigwig with a good reputation, falls from one of its famous cliffs. The police find a farewell note on him which points to suicide. To solve the case, a duo of detectives - one chic, one shock - must work together: Karine, a stunning yet inexperienced uniform cop, and Victor, an old hand with a strong personality. Their methods and opposing characters make sparks fly, but they both reach the same conclusion: no way is this a suicide. Indeed, the deceased was a practicing Catholic who lived a pious life according to the precepts of the Bible, one of which states that suicide is sin. The investigators begin exploring two possibilities. One, a settling of scores between the adoptive son-and-heir to his father's fortune and the siblings of the supposed victim. And two, the Abbey of Valmont Foundation, where the supposed victim had invested a lot of time and money. So what is it: a familial ...