$50nl: bottom set faces heavy action on a dry flop, 3way

[netstorm]

Both villains are reasonable players, UTG is a 22/10/1.5 over 50, UTG+1 is a 25/12/3.5 over 150 hands.

I'd like some discussion first before I tell my logic behind the hand. So, what do we do here? IMO, fold / shove is our only option left, since calling leaves us with like $10 in a $100+ pot on the turn. Ranges for villains?

Hansa Poker 0.25/0.50, hand converted by the iPoker Converter at Talking-Poker

Button ($102.33)
SB ($49.55)
BB ($85.90)
UTG ($48.35)
UTG+1 ($40.00)
Hero ($50.00)

Hero was dealt 2[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/diamond.gif[/img]
Preflop: , UTG calls 0.50, UTG+1 raises to 2.50, Hero calls 2.50, 3 folds, UTG calls 2.00.

Flop (8.25) 8 [img]/images/graemlins/diamond.gif[/img] 2 [img]/images/graemlins/club.gif[/img] K [img]/images/graemlins/spade.gif[/img]
UTG checks, UTG+1 bets 6.50, Hero calls 6.50, UTG raises to 13.00, UTG+1 moves all-in for 31.00, Hero ... ???