No read and Insta shove on the river

I think you're screwed - not quite sure how though. Would it be weak to check turn behind here - if you look at it, you don't beat hell lot - A9, A7- and draws (which obviously come plenty). Axs of hearts is certainly possible and he might be afraid of a check behind -> his bet is less than PSB, quite likely for value.

I think without a read, I'd fold here. But being weak, I might check turn behind quite some time. Even if it gives freebie to some draws, you also induce bluffs/"valuebets" from weaker aces on the river which gives you extra value from that side.

Nasty spot nevertheless. I think all you beat is a pure bluff ;]

fold.

fold

what hand is he playing like this? this is a very strange line for a set, straight or 2 pairs to take. i think he either made a flush or missed his draw/draws, i call