[Lostit]

I think I fold and throw up. I think the villain has it. He was the third call preflop, which makes some of those suited connectors marginally good calls in 2nd position 3-way. He then check/raised all in when faced with aggression and he's a straightforward player. There's no straight flush draw here, so reasonably I think he has either a made straight or a stupidly played set.

Regardless of whether he actually has it, should we call?
It costs 15 to win 40, or 37%. You need a Q or a 7, of which we can assume the villain has 1. Lets also assume that the chances of him playing a set are equal to you hitting a higher set or making a runner runner boat, so thats a wash. So you have 7 outs (4 queens + 4 7's minus one that is probably in the villains hand). With the rules of 2 and 4, on the flop, you have a 28% chance of hitting and no implied odds because he's all in. Now also discount the fact that if he has QJ, all your 7's became irrelevant, and you have one less J for you boat. Either way you're far short of you 38%.

For anyone who thinks this is a bluff, how often does a straightforward player, check/re-raise all in versus a good sized flop bet? Enough to make up the difference between whats probably a 25% chance of winning and the 38% needed to call this hand? Probably not.