Whatee!? Villain is overbetting huge on turn when board paired

[Laetus]

This is my second hand at the table, haven't meet the particular villain in this hand before. Should we call or fold to his all-in bet?

EverestPoker Game #1649639264: Table Bamako-16 - $2.00/$4.00 - No Limit Hold'em - 17:48:18 - 2007/06/10
Seat 1: lastikooo ($55.60)
Seat 2: reXne ($849.80)
Seat 3: HERO ($396.00)
Seat 4: khephren33 ($354.20)
Seat 5: Mikeyblue ($218.40)
Leodium posts the small blind of $2.00
khephren33 posts the big blind of $4.00
The button is in seat #2
*** HOLE CARDS ***
Dealt to HERO[K [img]/images/graemlins/diamond.gif[/img] K [img]/images/graemlins/spade.gif[/img]]
Mikeyblue folds
lastikooo folds
reXne folds
HERO raises to $14.00
khephren33 calls $10.00
*** FLOP *** [Q [img]/images/graemlins/diamond.gif[/img] 5 [img]/images/graemlins/heart.gif[/img] 8 [img]/images/graemlins/diamond.gif[/img]]
HERO bets $24.00
khephren33 calls $24.00
*** TURN *** [Q [img]/images/graemlins/diamond.gif[/img] 5 [img]/images/graemlins/heart.gif[/img] 8 [img]/images/graemlins/diamond.gif[/img]] [Q [img]/images/graemlins/club.gif[/img]]
HERO checks
khephren33 bets $316.20 and is all-in
HERO ?

[wpr101]

Clear fold. I wouldn't be surprised if he has a boat looking for a call from Qx.

[Riverrun]

he's got 2 diamonds. call.

[Laetus]

[ QUOTE ]
Clear fold. I wouldn't be surprised if he has a boat looking for a call from Qx.

[/ QUOTE ]
Ya, I folded pretty quickly. But why would he bet all-in with a boat/Qx? Probably due to it looks like a bluff. Hmm... do no one think this is a bluff a large portion of the time?