Both guys are donks. On the turn the bettor has like $250 left and the caller like $200

PokerStars No-Limit Hold'em, $4.00 BB (9 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

Button ($277.20)
SB ($506.80)
BB ($400)
UTG ($103)
UTG+1 ($400)
MP1 ($790.65)
Hero (MP2) ($406)
MP3 ($94)
CO ($369.40)

Preflop: Hero is MP2 with K, K
3 folds, Hero raises to $12, 1 fold, CO calls $12, Button calls $12, 2 folds

Flop: ($42) 10, 8, 6 (3 players)
Hero bets $32, CO calls $32, Button calls $32

Turn: ($138) 3 (3 players)
Hero checks, CO bets $48, Button calls $48, Hero raises to $362 (All-In)