The Case of Duke Situ, a domestic court drama in ancient costume, consists of 12 units with relatively independent cases, with 8 episodes. It is a combination of solving crimes, making jokes, romance, power struggle and puzzle, which is very ornamental, entertaining and educational. In this case-solving drama, Doudou (Pan Yan), a famous program host of Shanghai Oriental TV Station, who is known as "a thousand witches", plays the leading role of Situ Jun in reverse. For the first time, she played the role of film and television, disguised as a man in the play, and gave full play to her humorous and acting skills.