The Leftovers is an incredible television program that starts incredibly well and loses its way by the seasons end. The first season is often said to be too dark for consumption. I disagree, in fact, its refreshing to see a television show be so courageous in its exploration of loss. The best episode of the series, in my opinion, is Season 1, episode 6. Carrie Coon's Nora delivers a career performance as a grieving mother, bureaucrat, and representative of a broader community. The way this show portrays each individual in the context of corporate loss provides the best content that this show has to offer and separates it from any other TV show I've ever seen.
Unfortunately as the show goes on some of the dynamics change, leading the narrative quality of the show to decline. In an effort to bring the characters together, probably to reap the dramatic rewards such an effort would bring, the show shoots itself in the foot. Season 1 presents a world in which loss creates distance. That's what makes the show work. However in the second and third season this distance is gradually drawn closer and closer until it feels like a family drama with supernatural elements. That being said, both the second and third seasons have solid quality.