AK TPTK against an unknown.

[castigar]

How would you guys play this? Vilain was an unknown at the time.. Should I call? 2 pairs seem in his range quite a lot..
Full Tilt Poker, $0.25/$0.50 NL Hold'em Cash Game, 5 Players
LegoPoker Hand History Converter

Hero (CO): $65.55
BTN: $52
SB: $191
BB: $74.65
UTG: $44.65

Pre-Flop: K[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/spade.gif[/img] dealt to Hero (CO)
UTG folds, <font color="red">Hero raises to $1.75</font>, BTN folds, SB calls $1.50, BB calls $1.25

Flop: ($5.25) T[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/spade.gif[/img] (3 Players)
SB checks, <font color="red">BB bets $4</font>, Hero calls $4, SB folds

Turn: ($13.25) Q[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">BB bets $9</font>, Hero calls $9

River: ($31.25) 8[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">BB bets $19</font>, Hero ??

[subs]

raise the flop, raise the turn, call the river

[wingchunflush]

I am folding here 1 pair is usually not good, flush made all kinds of draws are there. Occasionally I will raise this flop player dependant