bottom set vs. turn overshove by unknown; 50NL

[GiantBuddha]

So I hate these threads, but...

Villain is complete unknown, like his second hand at the table.

PokerStars No-Limit Hold'em, $0.50 BB (9 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP1 ($20.45)
MP2 ($32.60)
MP3 ($34.40)
CO ($30)
Button ($56.60)
SB ($25.60)
Hero ($57.60)
UTG ($80.90)
UTG+1 ($48.75)

Preflop: Hero is BB with 2[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">MP1 raises to $1</font>, MP2 calls $1, <font color="#666666">3 folds</font>, SB calls $0.75, Hero calls $0.50.

Flop: ($4) 2[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">Hero bets $3.5</font>, MP1 folds, MP2 folds, SB calls $3.50.

Turn: ($11) 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $21.1 (All-In)</font>, Hero...