Fold to this river raise?

[MiguelSanchez]

Only have the PT read, through 40 hands UTG+1 is 85/5/0.25.

Party Poker 0.5/1 Hold'em (10 handed) converter

Preflop: Hero is UTG with K[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">Hero raises</font>, UTG+1 calls, <font color="#666666">4 folds</font>, CO calls, <font color="#666666">2 folds</font>, BB calls.

Flop: (8.50 SB) 8[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, UTG+1 calls, CO calls, BB calls.

Turn: (6.25 BB) 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, UTG+1 calls, CO calls, BB folds.

River: (9.25 BB) 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">UTG+1 raises</font>, CO folds, Hero?

To me, it's obvious that he has an 8 here. But, I am admittedly multi-tabling and not really paying that much attention to individual players. Do I just call down in this situation? What do you think through before deciding to fold or call?

[deepsquat]

I would call this, i think u will see a bluff often enough here.