It’s a show set in Portland Oregon and it’s like a modern take on the Brothers Grimm stories, where some modern day people have “beasts” inside them of different species and can turn into them (it’s usually just a facial change into a human-like bull, or a werewolf kinda thing, or a fox, or a rat, etc) when feeling strong emotion or when they want to do it, it’s a show mostly about homicides that these different things commit and how the detectives working on the cases react to their changing world around them

I’m in the last season so I’m almost done, but I’ve watched it before, it’s one of my favourite shows of all time