On the night of the 10th day, in the village of Pitou, Qianguang Town, Quangang, a man and a woman were found naked and drenched in blood. The man was dead with multiple injuries on his body; the woman had cut marks on both her wrists and was unable to speak. Was it murder or suicide? Was it a crime of passion or revenge? This case is shrouded in mystery. Informants claimed that the man was from out of town, and the woman had been widowed for many years. They met half a year ago and have been cohabiting without being married....