Loved the first two. Then it went a bit downhill, however in the 4th it dropped like a stone. There is no likeable character, not really. The girl is SUPER annoying and knowitall. Gaetano with his bulging eyes and over the top acting is comical but not in a good way. I dont know if that is what they were going for but it doesnt work. Chris Rock does not work either . You keep waiting for a joke. He isnt able to play such a character ,just does not have the gravitas, the presence not matter how much he tries to look tough and give you the evil eye.
The nurse had a promising start but then her story just fizzles out. Like the whole season, without give anything away, IMO it comes off with a bit confusing,disapointing and terribly pretentious ending.
4th season all in all is worth skipping, just a bland viewing experience.