OTF when passive player 3bets vs UTG X/R and your B/C his range is super narrow and strong.
In game it's pretty difficult to lay this hand down OTF but it might be the best option.

OTT I just don't see what weaker hands are doing this. You are hoping he is doing this with AK but I think thats pretty optimistic.
Im nit folding turn.

Jesus fucking christ. I honestly think you should fold. If they dont have you beat on flop already then they managed to hide it pretty fucking convincingly. What im trying to say is this looks like terribly played sets.

Sure you will sometimes catch a weird bluffvalue play here, and gto wise you should not fold this, but ingame this just screams fold. And if button is ever bluffing why on earth would he bet the turn this small.

fold the flop, as sick as it is

You are some very sick people of you can fold this in-game :D I'm guessing he had the dreaded 77. But what other hands is he actually doing this with!? I would level myself in to GII OTF, but that would obviously have been a mistake.

I would re raise utg otf since he wouldnt do that with KK to try to gii against him

As played pretty sick fold otf should be it
Or at least ott

Fold tje flop BN had 77

He's basically screaming that he has 77. Just fold flop.