The prince who is in charge of the Yuping case complains that the criminal investigation department is useless, and that the case has not been solved for so long. The prince agrees to take on the case. He tells the other princes that he has had breakfast and that he would like to see the prison cell before he interrogates the suspect. He then leads the way to the cell, but the door is opened from the outside, and the prince has to go into the bathroom. He asks the prince to wait for him. He says that the emperor has asked him to take over the case and that nothing good will come of it. He also tells the prince that he is here to interrogate the suspect, but that he must record everything