400nl - Big decision with 2nd pair

[Nick Royale]

400nl, villain is 39/12/2 and has a 24% raise c-bet over a 500 hand sample. Villain has $375 and I cover.

Hero is in MP with K[img]/images/graemlins/heart.gif[/img]J[img]/images/graemlins/spade.gif[/img] and raise it up to $16, villain calls from SB.

Flop (pot: $34): J[img]/images/graemlins/diamond.gif[/img]7[img]/images/graemlins/spade.gif[/img]5[img]/images/graemlins/diamond.gif[/img]
Villain checks, Hero bets $22, villain raises to $62.29, Hero calls with the intention of pushing over any bet on a non diamond/A/Q turn.

Turn (pot: $156): Q[img]/images/graemlins/club.gif[/img]
Villain bets all-in, $299.


1) Call or fold?
2) What do you think of hero's plan when he calls the flop?