19. 'The Returned' (2012-Present)
When the dead rise from the grave, there's usually little doubt that hell follows with them. This French series took a very different approach: What would happen if the deceased reappeared pretty much the way they were before? Yes, the mysterious supernatural forces that caused the late residents of one small town in France to return and attempt to get on with there lives were often frightening. But the series was at its darkest when it explored how the community adjusted — or failed to adjust — to people they'd learned to live without, often with lethal consequences.