La Mante
Decades after her capture, a serial killer offers to help solve a string of copycat murders -- but only if her son, now a cop, will work by her side.
Starring Pascal Demolon, Robinson Stévenin, Frédérique Bel, Jacques Weber, Serge Riaboukine, Fred Testot, Manon Azem, Carole Bouquet, Élodie Navarre
It's a crime and drama show, and has a rating of 7.4 out of 10 from Imdb which is usually fine for this kind of show.
Watch it here
Not found streaming from Ireland.