NL25 - Analyze this PF vs LAG opponent

[reemas]

Explain your thought process. Opponent was about 34/25/2.5 after 50 hands. I've been playing super tight around 12/9 since my table was very very loose. Stack sizes say it all.

Opponent seems to be positionally aware, likes to steal and was 8/8 100% at showdown.

Do we raise, fold, or call in this spot PF?
Poker Stars, $0.10/$0.25 NL Hold'em Cash Game, 6 Players
SB: $3.85
BB: $9.50
UTG: $5.95
MP: $29.15
CO: $24.60
Hero (BTN): $48.40

Pre-Flop: K[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/spade.gif[/img] dealt to Hero (BTN)
UTG folds, <font color="red">MP raises to $1</font>, Hero?