I would never dock points from a Lifetime movie for being formulaic, as that is often a requirement. While 'Perfect Little Lies' managed to throw in some plot twists, hardly any of them landed successfully. It really felt like the script was written on the fly without much forethought into what was coming next. Some performances, especially from the lead, were quite good, but a lot of the supporting cast were awkward. And the ending was borderline embarrassing.
If you want a good laugh, catch the moment toward the film's conclusion where the masked villains are casually tailing the hero in a truck WHILE BOTH STILL WEARING THEIR MASKS. I am still chuckling at that image. It really makes no sense. Why would they be wearing their masks alone in their own vehicle? They know who each other are! (The actual reason they're wearing their masks in that scene is so the AUDIENCE doesn't see who they are, which, of course, is not a good reason at all.)
If you want a good laugh, catch the moment toward the film's conclusion where the masked villains are casually tailing the hero in a truck WHILE BOTH STILL WEARING THEIR MASKS. I am still chuckling at that image. It really makes no sense. Why would they be wearing their masks alone in their own vehicle? They know who each other are! (The actual reason they're wearing their masks in that scene is so the AUDIENCE doesn't see who they are, which, of course, is not a good reason at all.)