trailer ALSO reveals the 'twist'

This reminds me of 'a perfect getaway'.
I think it's obvious that this will be more of a 'escalation' twist survival movie, with the twist that it's one of the three women that is actually the psycho one.

Think about it. We see a girl seducing a guy, we see them both probably drunk, we see the guy getting carried away, but we see the girl likely bash his head in with a rock. Now if I was one of the guys and some gal just assaulted him (or maybe killed) with such viciousness, I would probably be raging too.
I think that it all escalates from there and that in the end it's actually revealed that it was the girl that (maybe had a grudge against one of the men for a past whatever) seduced and killed him on purposed, creating situations where she can kill the others out of self-defense, or even gets her innocent friends so far as to kill the men.

We don't see the men attacking the women in the trailer. Sure, we see them pointing guns (does not imply intend to kill), but we see the women clawing and stabbing and whatnot. I think the trailer is shot in such a way that it's TOO obvious the men are the bad guys here.

also, a guy says 'Im not afraid of you'. That's not something your average crazy hunter or rapist would say.
We see the girls being tied up, but wouldn't you tie up people you think are dangerous? We don't see the men 'harming' anyone, yet we clearly see the women clawing and fighting themselves to freedom.
In that situation, wouldn't a trailer focus more on the tension and danger coming from the men, rather thn show us how the girls free themselves ?

I could be wrong here, but let me know your thoughts!