A Simple Favor was interesting, enjoyable 4 a while, but then it just became too weird & nutty.

I'm not sure why you're going to such lengths to defend a movie you find "laughable". It's like you think I'm insulting Gone Girl by saying it got ripped off. It's the opposite. Anyway, here's a checklist:

-turns out "missing girl" faked her disappearance
-missing girl plans or actually has their "body" found in lake
-missing girl attempts to frame unfaithful husband
-unfaithful husband is a teacher she supports financially
-husband is having an affair with student
-missing girl and husband like to have kinky sex in public
-missing girl mangles her face with tool to sell her charade
-missing girl turns out to have a history of conniving manipulation
-missing girl has bimbo friend she uses
-missing girl ends up killing someone while the exact same music plays
-there's a sardonic black guy on both cases
-1/2 of the couple either wrote a famous book or was the subject of one
-the main character of Gone girl is accused of having sex with their sibling, the main character of A Simple Favor actually did

Abd probably more.