Set on flush & straight board facing overbet allin on river

[Marnixvdb]

stacks $200, $1/$2 NL, 3handed

one limper, I make it $9 with 9c9s on the button, SB calls, limper calls.

flop 975 all hearts. Check, check, I bet $24 into $28, SB calls.

turn 8c

check, i check (not much point in betting here, right?)

river 4d

SB instabets $164, exactly what I have left.

what do i make of this? Can I call? I didnt have much info on him, but he sat with a double stack and the little stats i had on him seemed decent.

Marnix