3.5 rounding to 4.

Is this High Literature? No. Is it a fun thriller that delivers justice to deserving men? Yes. Think of "Killing Eve" crossed with "Promising Young Woman" with the setting of "Secret History" and you'll have the general vibe.

I found it fast paced, fun, and just the right level of dark. It might be the kind of book that requires a specific mood (like utter outrage at the patriarchy), so if it doesn't land for you the first time, try it again later.