Meurtres à Bayeux is an entry in the Meurtres à... (Murders in...) procedural anthology series/tourism promotion.*
A few words about the Meurtres a... formula-- and it does have one. Generally, the murder takes place in a location having some scenic, historical, or cultural significance. Usually it pits man and woman detectives against each other-- often one of them is a hotshot from out of town, the other a local who resents the carpetbagger. They are forced to work together, sparks fly (it doesn't hurt that they're both usually drop dead gorgeous), and by the end of the 90 minutes they have gotten together.
Sometimes they vary the formula-- the detectives might be a father and daughter, or brothers, or sisters, or a married couple, or a divorced couple, or mother and son, or nun and son (yes, it has happened), or a cop and a prosecutor, or cop and a pathologist, or a cop and an author, or even a cop and a pathologist/author. In Meurtres a Lille 2 (2018) the team was a woman commander and a gay captain-- but they wound up together anyway. But man and woman detectives meeting cute over a corpse is the standard equation.
Lord John Dewish, expat British royal living in Normandy, is found dead-- apparently shot from his horse with an arrow to the eye, the same death as Harold as portrayed in the famous Bayeux tapestry.
The main protagonist is Gendarmerie Capt Clara Leprince (Sara Mortensen from Astrid et Raphaëlle), who is called in from Caen to handle the case, but she has her own problems: seven months pregnant, estranged from her sister Mathilde (Camille Claris), and Bayeux is her hometown. She left Bayeux ten years before after the apparent suicide of her mother who, like Mathilde is now, was connected to the town's tapestry-based economy. Partnered with Lt Vincent Clerc (Idir Chender), who happens to be Mathilde's fiancee, Clara finds the Dewish case has troubling connections to her mother's death.