"Ma Zhe" (Zhu Yilong) engenders an almost adulatory degree of support from his team as he leads them on an investigation following the discovery of the body of the goose-rearing "Granny Four" on a remote riverside. Suspicion quickly falls on her adopted friend known simply as the "madman", but the detective is not so convinced that things are that straightforward. His ensuing task isn't helped by pressure from his ping-pong playing boss to conclude quickly and by the fact that he and his wife are expecting a baby - and that procedure is not going to be as simple as they might like. With the ra...