When I finished watching Dark, I thought "Noone ever needs to make a movie of whatever on time travel, ever again!" However, as mind-blowing as it is, the plot suffers from abundance. It could have been said with one season less. It keeps repeating the same phrases over and over again, as if their purpose is to invite you into analyzing them, but you should rather accept them as such. It seems that the complexity of the plot serves its own purpose. The ending is rather mediocre in comparison to its build-up. The cast is just amazing. All in all - amazing tv show.