This spot is from a while ago. Played in the DTD £300 Deepstack. Alot of dynamics to the hand so will try to explain as best I can.
Blinds 400/800/100
UTG raises to 1800 (30k stack). UTG is very capable, but also very very loose aggro. Raised alot of hands in the last orbit, had alot of battles with UTG+1 and a bit pot is coming.
UTG+1 flats out of 23k. See above. This is Jim Moult, and been having alot of battles with UTG
UTG+2 flats out of 40k. Bingo Bill. Dying to get in a hand as hes been unable because of the fireworks at the other end of the table.
Hero is Highjack with

playing 25k. Your line here?
I have a very tight image, so can probably get squeezes through. All 3 players in the pot have wide ranges. However, we want to play this hand multiway with the current dynamics. Pretty sure this is a flat, but should be be squeezing?
I chose to flat for the above reason
BB calls out of 50k stack.
Flop:

(pot ~10k)
UTG leads for 3800.
Folds to hero. Your action? Reasons? Chose to flat here as we have alot of backdoor draws and could have the best hand/TID on the turn vs villains wide range.
Rest of the hand is pretty obvious, so just want views on Post/Flop lines.
Sorry its long, Wanted to get the dynamics in