Li (Sam Hui) works at a sanitarium as a male nurse, as well as Ah Tim (Michael Hui) is a convenient man. Eventually, a bearded old man is sent into the sanitarium with a large bag. Ah Tim takes care of to steal the bag, and finds antique pieces inside. When the old man dies, both gain from his child that there is a sunken vessel that is loaded with a lot more than they already have, so they determine to pursue the sunken treasure.