Some important questions
1. Why did those guys not just tell the police when Regina died? They didn't do anything wrong. I understand that they were scared, but still... didn't they think they would only get more trouble this way since many people saw her on the party?
2. How did Megan know that Regina was with them and overall what happened? Ok, Regina could have told her where she was going, but wouldn't then the first step be to inform the authorities and have them search for her? And how could she possibly have known about anyone's involvement other then perhaps the guys who invited her, and even that would be hard to pin on them. She also knows where the body is buried and tons of other details she couldn't possibly know, it just makes no sense.
Is it through Keith? He might have seen Regina get buried, but it didn't seem like he would be at the party so how could he have known about anyone else's involvement. Speaking of which...
3. What exactly are all the other people punished for? Getting a glimpse of a girl having sex with their friend? Is that something bad? Other then Jenna, the other guy and girl barely even did that.
Or if they were punished for not informing the authorities when everyone searched for Regina, then the question is...
4. If everyone saw Regina at the party and the other day she was missing, wouldn't they be suspicious? It seemed like everyone was very familiar with the case, but totally surprised when they heard the actual story. And this leads to even bigger question..
5. How did the cops not have all the bodies correctly identified by then? Especially Reginas sister who was all over news and who was instantly recognized by Jenna's parents.
6. Was Megan then supposed to be 15 or not, because the actress could definitely not pass for 15. How did the guys who accidentally killed Regina not watch the news and know what she looked like in the first place. And why was everyone so chill about a mysterious girl being in their boat and joining them.
Ok that is already a lot, main question for me is still how the hell did Megan know whom to blame and all the other details in the first place, and if she knew it all so well, then what did she blame most of the people there for anyway.
Extra question:
That snake could easily not have killed the guy. He was opening cupboards and ran into the apartment alone, but that was unpredictable. What if they were smart and stuck together with some weapons. What would Megan and Keith do then. And why let Megan go alone in the first place anyway...
I also wonder what happened to the dog, but I guess that remains a mystery.