The Leftovers was never a show that liked to give away answers, and its ending was no different. The mind of Damon Lindelof took Tom Perrota’s invigorating book and expanded it into a three-season show, delving deep into the characters’ psyches and leaving the show’s captivating mystery in the background. Over the course of many puzzling episodes, viewers followed Kevin and Nora as they tried to adapt to a shattered world, haunted by the mysterious disappearance of two percent of the world’s population years ago. Although the Departure affected the whole world, the story unraveled through the eyes of the characters of an ordinary American town.

https://screenrant.com/leftovers-show-ending-explained/