Veteran film director Moon Je-jeok, who became a detective with a secret story, and Hyeon Myeong-jin, a new lawyer for the MZ generation who just graduated from law school; their pleasant and ingenious reasoning of events begins now! What is the story of Moon Je-jeok becoming a detective? What is the mystery of an actress who disappeared 30 years ago? Look forward to the success of Moon Je-jeok's Detective Agency in 2022!!