Flopped bottom set facing a shove after a PSB

[Pharcyde]

The PF raiser is running about 24/9/3 over 117 hands. Don't have any stats on MP cuz he just sat. I hate being in this spot against an unknown. Is this a call or a fold?

Poker Stars - No Limit Hold'em Cash Game - $0.05/$0.10 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $5.15
BB: $11.05
UTG: $8.70
MP: $9.40
Hero (CO): $10.70
BTN: $15.10

Preflop: Hero is dealt 2[img]/images/graemlins/diamond.gif[/img] 2[img]/images/graemlins/heart.gif[/img] (6 Players)
<font color="red">UTG raises to $0.50</font>, MP calls $0.50, Hero calls $0.50, BTN calls $0.50, 2 folds

Flop: ($2.15) 2[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] (4 Players)
<font color="red">UTG bets $2.00</font>, <font color="red">MP raises all-in to $8.90</font>, <font color="red">WTF does Hero do?