The Missing Gun

Ma Shan (Jiang Wen) is a policeman in a village somewhere in provincial China. He wakes up one morning and discovers that his pistol is missing. When his superiors find out, he is given until the end of the week to find it, or else. The previous night, Ma had been at his sister's wedding, where he had gotten drunk to the point of passing out. He must reconstruct what happened to him and try to track down the person who stole his gun.