What a mixed experience this turned out to be! The writing constantly keeps you guessing for the first two acts, and the fantastic sound design and lighting choices add to the underlying mystique. The two lead performances are deliciously first-rate, making us question their inner motives with each passing scene.. at least for a good chunk of the film's first hour. The framing in these sections consists of several uncomfortable, unforeseen close-ups. But by the time it moves into the final act, a sudden wave of "oh no!" just takes over, replete with overblown edits and messy color patterns.
And to think, the same film effortlessly made me feel on edge during the initial (often philosophical) exchanges between the two characters, further deflates the experience overall. The woman character, especially, is oddly written. There are stretches where we as audiences are made to think she's harboring some dark secrets (or questioning if she's even a real person or just a manifestation?), and a little later, the same applies to the man. This leads to random jumps in character perspectives, albeit for short periods. Also, while the man's state of mind gets somewhat better detailing in the final act, the woman's side of things lacks a finite arc (..and was that even intentional?).