‘Legion': What’s Up With David and Syd’s Body-Switching?

The most “WTF” moment of FX’s “Legion” premiere has Twitter scratching its head over what they just saw

Please don’t read on if you haven’t watched FX’s premiere episode of “Legion”

A big part of FX’s “X-Men”-related new show “Legion” is that it leaves viewers unsure what is real and what’s in protagonist David’s head.

The head-scratcher happens when David (Dan Stevens), a mental patient stuck in a hospital, finally touches his girlfriend Syd (Rachel Keller) for the first time.

Why FX's New Superhero is Called 'Legion' Hint:

Like David, she’s a mutant too — she shows up with a team of mutants to save David at the end of the episode.

Lenny has been fused into a solid wall, killing her, and all the doors on the rooms in the hallway literally no longer exist.