Where Are Peking Man's Bones?

Lupin is in Hong Kong for a vacation, when he is asked to find an old woman, as payment of a debt. Lupin is red-faced, and not just from the Hong Kong heat. A beautiful woman has also crossed his path. It turns out that her mother is the woman he is looking for, and the burial jar in her possession contains not the bones of her father, but the archaeologically famous bones of Peking Man! Fujiko is also after them. How will the struggle over the bone jar come out?