In different parts of rural China, various people explore what makes their communities unique.

A major crime occurs in Tokyo when detectives Tang Ren and Qin Feng are invited to investigate the crime. A battle between the strongest detectives in Asia is about to break out with bursts of laughter.

After failing to become a cop, a mystery enthusiast goes to visit his hapless cousin in Thailand. One is a brainiac and the other a twitchy loser, but together they're going to solve a murder.