If I'm not mistaken, villain has $3.3 behind after his turn bet. If we take the fantasy scenario that you are never behind if you hit on the river and that you always stack your opponent when you hit, then you're getting about 5.7:1 on your call when you'd need odds of about 4.7:1. Since this fantasy scenario is extremely one-sided, and that you lose a bit of money when you hit on the river if you're behind, I'd be inclined to fold if you think you're behind on the turn.

However, this is 4nl so it's hard for me to have a feel for villain's range. If villain is pretty tight here, then I'd probably fold. The turn bet screams overpair to me, but I could be wrong.