TPTK facing a turn minraise. NL100

[EasyAs1-2-3]

Villain is unknown, just sat at the table.
Hero:$99.50, Villain covers.

Hero is deal A[img]/images/graemlins/club.gif[/img]Q[img]/images/graemlins/club.gif[/img]

UTG folds, UTG+1(villain) calls, CO folds, BTN(hero) raises to $4.5, SB folds, BB folds, Villain calls.

Flop: ($10.5) Q[img]/images/graemlins/diamond.gif[/img]4[img]/images/graemlins/spade.gif[/img]10[img]/images/graemlins/club.gif[/img]
Villain checks, hero bets $8.5, Villain calls

Turn: ($27.5) 10[img]/images/graemlins/spade.gif[/img]
Villain checks, Hero bets $22.5, Villain raises to $45, Hero...?

The c/c minraise turn is usually screaming strength from bad players. What are we thinking here?