$400NL. KK in 3-bet pot. No idea what to do on the flop....

[cbboy]

Villain is A___r___K on PP for the players that play there and know who he is. For those that don't know him, he is 23/17/2.5 over a decent sample.

Party Poker
No Limit Hold'em Cash Game
$2/$4 Blinds
5 Players - (LegoPoker HH Converter)

SB: $107.85
Hero (BB): $491.00
UTG: $433.10
CO: $451.00
BTN: $1,231.60

Preflop: Hero is dealt K[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/diamond.gif[/img] (5 Players)
<font color="red">UTG raises to $16.00</font>, 2 folds, SB calls $14.00, <font color="red">Hero raises to $64.00</font>, UTG calls $48.00, SB folds

Flop: ($144) T[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero....</font>

What is the best line here? I was really confused in this situation and had no idea what the best line to take was... Thanks for your help.