It was a TV Show or a movie I am not completely sure. The names of characters and places sounded foreign like Latin America / Spain (or maybe Italy or France).
The story was about immortal werewolves. Some of the characters worked for the police and tried to investigate some werewolf related murders.
A conversation with a friend reminded me that one of the characters was a judge.
Other characters were teenagers. One of them was a werewolf.
The murders were related to some ritual to kill a werewolf/stop the lycanthropy spread.
The werewolves were immortal - their wounds healed fast. One of them survived a direct shot to the chest.
There were at least two werewolves, possibly more. One of the werewolves might have been a teacher, the other one was a teenager.
One of the scenes I remember was that somebody tried to find the werewolves by bringing some kind of magic flower to the school dance (my memory suggests wolf's bane but I may be mistaken).
There was a big focus on romantic relationships between different people.
I watched this movie/series probably around three years ago but it might be older.