I'm about 5 episodes in, and it's freaking me out.
There's multiple realities?
They go through the whole quantum physics explanation.
There are some creepy moments... encountering another version of yourself or others... the pills they give some astronauts... the couple that made recordings that ONLY some can hear in certain places... the cover ups....
By the way, Noomi Rapace is perfectly cast as the lead and Jonathan Banks does an amazing job being secretive AND menacing.