Given that Servant, the Apple TV+ show about a family reeling from the aftereffects of tragedy and their megalomaniac nanny who may or may not have supernatural powers, was an M. Night Shyamalan project, fans knew to expect a twist.
(Warning: Spoilers ahead for the series finale of Servant.)
The central mystery of the show—whether or not caregiver Leanne, played by Nell Tiger Free, actually had the power to turn a doll into a living baby, and whether those powers were angelic or demonic—teetered back and forth with every episode, some moments seeming to confirm one interpretation, others invoking the opposite. After keeping us guessing for four full seasons, Servant revealed in the final moments of the final episode what it was all really about.