Troy Gauthier’s review published on Letterboxd:
In this movie it is a stylized mystery when it begins with Andrew Garfield's Character Sam as he is watching his neighbors then he gets attached to one of his neighbors Sarah played by Riley Keough and goes across Los Angeles to figure out unlocking the puzzle. Now this is a thinking man/woman's movie upon which you have to watch every frame from beginning to end in order to understand it. The performances by all the cast are solid along with the directing. I highly recommend that you watch it!! Also a rewatch needed.