He searched all the dead people in Beiping City, but he couldn't find the one about his father.
It was late autumn in the 19th year of the Republic of China.
A soaked corpse was fished out of the moat. The deceased's pocket watch stopped at three o'clock. On the same night, the owner of the silk shop died in his locked warehouse, and the key was in the deceased's stomach. Three tea drinkers at the Liulichang Tea House drank the same pot of tea, and only one of them died from the poison. Where did the poison come from?
Detective Pei Xubai investigated one by one. The more he investigated, the more he realized that there was the same thread behind these cases.
But what he wanted to check most was not what he was seeing.
Ten years ago, his father died on the way to watch the night watch, and the autopsy box read "died suddenly due to heart attack." He read it over and over again for ten years and could recite every word - but he didn't believe it.
Wen Shuning, a female doctor from Union Hospital, was his childhood sweetheart who grew up in an alley. He investigated the case, and she examined the injuries. The two of them had a tacit understanding among the dead for ten years, and no one broke the layer of paper.
Until Pei Xubai found a yellowed photo in the pocket of the fifth corpse.
He knew the person in the photo.
He even knew the man next to the photo - Wen Shuning's father.
At that moment, he understood: there are some truths, and when you dig them out, you will stab them with a knife, not yourself, but the people closest to you.