What is going on here?

[The Goober]

Mick,

This is a crazy hand. I'm having a hard time putting anybody on anything. If MP2 is really a TAG, how many hands is he cold-calling with PF with no other callers yet? I also have a hard time seeing him not 3-betting the turn with quads or a 7 with all those people in.

The only part I don't like is the turn CR. CO posted PF, flat-called a raise, called the flop and now bets out when the board pairs the 7. I'm not going to give him credit just yet for 7's full, but it seems reasonably likely. Your raise faces the field with 2 cold, but what hands are you protecting against? This seems like a classic WA/WB situation, and I'd rather get overcalls from hands like overcards and overpairs that are drawing dead or to 2 outs.

I'd probably call the river because I'd be so confused, and I'd probably be wrong doing so.