From NetFlix:

A young female detective is put in charge of a case and must delve into her partner’s mysterious past in order to solve it.

Despite the similarity of one detective procedural to every other, some stand out from the crowd as at least a bit better. “Witnesses” is one such series. Accompanying the French dialog you may choose excellent English subtitles. Only one season was made and it consists of 6 episodes. Wikipedia offers very little information.

Many French towns were used for the filming but the story centers on Pas-de-Calais on the northern coast of France. If nothing else, the scenery is worth the viewing. Most interesting is the fact that the town is on two levels: Lower level is on the sea and butts up against the sheer rock cliffs that match the “white cliffs of dover.” Upper level is at the top of those cliffs. To get from lower to upper levels and back, there is a closed-in ski lift that ascends through the rock wall. This lift was built in 1901. Note also the new housing complex of very expensive and spacious homes which figure into the plot.

Personal relations among the characters, especially between Paul Maisonneuve and Sandra Winckler, are essential to the story. Basically the tale is their effort to catch an extremely clever serial killer who has escaped from prison.

Compared with an American detective procedural, this series is less violent. However, there are murders and gun fights.

Because I could stream this from NetFlix, I quickly became addicted.