You won’t just become addicted to Sundance Channel’s French-language drama about people returning from the dead; it will haunt your dreams. "Your Next Television Obsession Is French Supernatural Thriller The Returned " In the opening sequence of extraordinary French thriller The Returned , a yellow butterfly, pinned and placed in a display case, mounted on a wall, unexpectedly flutters back to life and smashes through its glass prison. It’s an enigmatically beautiful moment, and an apt metaphor for the overall premise of The Returned (which premieres Oct. 31 at 9 p.m. on the Sundance Channel), a collision between the worlds of the living and the dead that leaves both shattered. Created by Fabrice Gobert (who shares directing duties with Frédéric Mermoud) and based on a 2004 film of the same name, The Returned (in French, Les Revenants ) is unlike anything else on television, on either side of the Atlantic, an atmosphere-laden and character-driven drama that deftly ble