Within just a short while—less than twenty minutes—the strange actions and dream imagery begin, which I found captivating and made me eager to see what might happen next. The dream scenes are unsettling and frightening in a way that makes you want to experience them again; I appreciate how disturbing they are. There's a lot going on, all designed to take the viewer on an intense trip into either scientific exploration or outright insanity—something we’re all invited to witness, whether we like it or not. The diversions and misleading clues are exceptionally clever and imaginative, at least in my opinion. This is truly an outstanding film.

Source on TMDB