20/180 - small PP pf checkup BSvBS

[registrar]

Villain has been with us for around ten hands. He doubled up shoving over an UTG 4x raise with KK and, if he's been paying attention he's seen me bet/call a SS push (and lose) with KQo.

Who calls for set value here?
Who folds?
Who raises?

And why?

Poker Stars
No Limit Holdem Tournament
Blinds: t150/t300
(Ante: t25)
8 players
Converter

Stack sizes:
UTG: t2285
UTG+1: t9245
MP1: t9955
MP2: t3665
CO: t2370
Button: t3845
Hero: t11186
BB: t6975

Pre-flop: (8 players) Hero is SB with 5[img]/images/graemlins/club.gif[/img] 5[img]/images/graemlins/diamond.gif[/img]
UTG folds, <font color="#cc0000">UTG+1 raises to t800</font>, 4 folds, Hero?