In response to a notice from Lupin stating that he will take the money from every bank in Paris, Melon, a femal detective and the granddaughter of Inspector Garimard, rival of the original Arsène Lupin, is selected to replace Zenigata. The sea of bills gathered and stored in the underground police morgue is guarded by a special lock, whose switch is in the Superintendent-General's office. Melon's cold beauty shines in the Metro!