[rannerboy]

I would call. Looks too much like an isolation raise to me. No way the reraiser has AA or KK. UTG might push with almost any two cards here as the blinds hit him the next hand. If the reraiser has noticed this he will isolate with a lot of hands. You're probably up against a PP <= QQ, or if you're lucky he has a weaker A than yours. It's time to double up or quit.