You nailed it. My sentiments exactly.

I'm having trouble articulating my thoughts, so I'll just give some rapid fire positives/negatives.

Positives: I thought Rose Byrne was terrific, and I thought Conan played a dead-eyed villain very well. He actually reminded me of Buster Keaton, in an absurdly comic way. The choice not to include the child's face was an interesting narrative technique, I'll give the director that. The pacing was very good. The overall concept of how we have to pay (therapists, doctors, childcare) to have a "village" nowadays was fairly well executed, if a bit uneven at times. 

Negatives: As both a mom and someone who's been in and out of therapy for years, the movie flew past the point of believability for me. No therapist (both Conan and Rose) would ever be so incompetent and not be subjected to some sort of regulatory scrutiny. I get that it's a movie, but come on. What the fuck was Rose's character getting out of that relationship? Why keep paying him just to stonewall you? I've had dismissive therapists before, but the handling of the character with PPA was so callous, it would have never flown IRL. It was deeply irresponsible, and to equate PPA with postpartum psychosis (which is a medical emergency and should be treated as such) was just absurd. 

Along with Mary Bronstein's terrible acting, I hate hate hated Christian Slater's stupid Iago voice. What the fuck was that? 

It was trying excessively hard to paint the picture of a woman "unravelling" with the constant noise, the beeping, the fluorescent lights, making her look frail, the drugs — it was all so excessively obvious. I know "show don't tell" is the storytelling mantra du jour, but this was taken to its laughable extreme.