PokerStars No-Limit Hold'em, $4 BB (6 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

CO ($321.90)
Button ($367)
SB ($551.90)
BB ($236)
UTG ($400)
Hero ($586)

Preflop: Hero is MP with K, Q.
UTG raises to $12, Hero calls $12, 4 folds.

Flop: ($30) 4, K, 5 (2 players)
UTG bets $20, Hero calls $20.

Turn: ($70) K (2 players)
UTG checks, Hero bets $36, UTG calls $36.

River: ($142) A (2 players)
UTG checks, Hero bets $104, UTG raises to $332, Hero ???

hero goes WTF? is this always AK/AA setz? everyone fold here?