Seasons one and two were an 8. Season three was a 7. Being generous, season four is a 5. This is another one of those Netflix shows that they stretched out and tried to get an additional season when they should've let it go on a high note. The whole dynamics and pace of the show has changed in this season. Instead of being about a serial killer, the serial killer has become an armchair detective, trying to figure out who is trying to frame him for a murder, and also knows about his past. This season has a bunch of pretty people , all narcissists and almost has a comedic feel to it. If I were you, I'd watch the first three seasons, and leave it at that.