The ending of Jordan Peele’s “Us” left viewers questioning everything they had seen in the film up until that point. The internet hosts dozens of theories about what Peele’s ambiguous ending could have meant, but only a few seem feasible in the context of the movie. However, once that happens it’s revealed that their roles had been switched the entire time, and “Tethered” Adelaide had taken the place of real Adelaide when they were young girls. When the version of Adelaide that viewers were rooting for finally succeeded in killing her alleged tormentor, viewers feel a sense of relief and triumph. The interesting thing is that you’re never left wondering about the plot, because the ending is very clear.