In New York, the gang war is raging between Chinatown and Little Italy! One by one, all Vito-la-Déveine's men fall in love with the same woman, Sigh-de-Jade, a formidable enemy. And for her beautiful eyes, they go so far as to kill each other! In order to stop this loving epidemic, you need a hardened single, a straight and just man... someone like Spirou! In order to convince him to accept this perilous mission, Vito does not hesitate to recruit four ladies as beautiful as dangerous, led by the lovely Luna, his own daughter. Capturing both adventurers, he will force the intrepid reporter to collaborate for him by turning Fantasio into a living bomb. If he wants to save his friend, Spirou has only twenty-four hours to throw himself into the mouth of the dragon and find this mysterious philister of love.