Wang Chen saw through Wu Xianglian's conspiracy early in the morning, but he didn't spell it out right away because he thought that even if Chen Bale didn't consider the bond of sharing the same village, he would let things slide given Wang Chen's impoverished situation.
However, after a few exchanges, he realized he had thought too highly of Chen Bale.
Right from the start, the three of them had clear roles.
Wu Xianglian played the victim, Chen Bale, being from the same village, muddied the waters playing the good cop, and the bald brute assumed the role of the bad cop, making a fuss.
The trio sang in harmony, aiming to neither blow things up nor coax the money out of Wang Chen's hands.
Since they weren't planning on leaving any room for negotiation, Wang Chen felt there was no need to keep talking things out.
He had conducted himself with integrity and done nothing wrong, so he wasn't afraid of calling the police.