First and second season, good and would give it 7 stars. Third is... want to see what is resolution, but have to force my self to watch it. I am very scared how forth season will look like.

Whole third season is like an attempt to prolong one maybe interesting story to as long as possible. First season was interesting, logical in most parts and I enjoyed to watch it on one go. Second one was bit more messy, plot holes and over-combinations were more and more present, but still it was quite a good show.

Third one, logic took vacation and plot holes and in overall believability went out by the window. Characters have huge twists in reasoning, some like would switch their personality in total which in the whole series is couple of days, intense but couple of days not years to switch from normal, logical and calm person to irrational psychopath.

What would solve one call, it is spread out on 3-4 parts. Did you notice no one use mobile phones, in 1963 quite believable, not in other times. Took it as different reality, but then why everyone is acting the way of not talking to anyone else, not even a note "hey we have a suitcase..."...