I think people are a little confused on what this show is about. It is a murder mystery, but that takes the back seat a lot of the time, and focuses more on the psychology of our characters. This is a show about trauma and the way it affects people, especially Camille (Amy Adams). It can be gory, but doesn't really show much active violence. It's thrilling, but definitely isn't action packed.
This show isn't for everyone, but there's no denying that it's extremely well made. This was Jean Marc Vallee's final completed project before his passing in late 2021. The director and assistant editor, also known for Big Little Lies season one, really knows how to tell a compelling story.
The direction is amazing, and since he has a large role in editing both shows, it has a similar editing style to Big little lies that is very effective in the demonstration of trauma. We see flashbacks in short, few second bursts that give us insight into what a character is thinking about, which lends itself for an incredible viewing experience.
If you want a dark murder mystery that puts the psyche of its characters in the drivers seat, this is for you.