Plagiarism?

Rating: 9/10 (6 January 2019)

I enjoyed this movie. Well, I really enjoyed the acting, and the cinematography is delightful for those who enjoy that kind of thing. I felt the characterisation could be better, the interactions were all pretty bleak after the feel good intro (if you've seen Twin Peaks, you'll know what I'm getting at, but it is a movie and not a show, so they had less time and I suppose didn't want to confuse the mood).
I take a point off because from the introduction of the 'maze' obsessed character I started to think of a book, a book that terrified me and I would not read again. The underground maze reveal and the incessant torture of the lead husband also stank of this book. I wonder if the maze idea was plagiarised/inspired (and the plot totally reworked) by it or whether I'm just bringing my impression of this book to the film. Perhaps the idea comes from that mythological story about the maze and the Minotaur and has been reworked many times but until now I had only caught one.
I read some other reviews but no one really commented on this that I saw. The ending is perfectly unnerving and directed my thought right into the obvious juxtaposition.
This is the kind of movie I would recommend to a friend just to gauge them by their reaction.