$475 effective stack HERO is UTG + 2 with KK

EP shortstack limps for 5 HERO raises to 20 B fish calls 20 BB calls 15 EP calls 15

FLOP comes 854 rainbow checks to HERO who bets 55 B Fish calls, BB c/rs to 160...

Really freaking hate spots like this... Villain is a mid 20s kid could possibly be getting fancy he was staring at me like a douchebag (Mike Mcdonald wannabe type stare) What are our options here? Is this shove/fold or is it peel/reevaluate turn?