Bryan Colley’s review published on Letterboxd:
It's fun as a "thriller movie" but it's so preposterous and implausible that it's hard to take seriously. The real failure is that Michael Douglas' character is so undeveloped that the supposedly life-changing events of the story don't lead to any real transformation, epiphany, or catharsis. He just ends up hitting on the hot chick, which shows that the film doesn't really have a point to make and is just there for the paranoid thrills. In reality he would need a ton of mental therapy. The other problem is that in a film where you can't trust anyone, it's pretty obvious that, well.. nobody should be trusted, and yet Douglas makes that simple mistake multiple times.