Jane de la Rochefoucault has just brought home her firstborn and her world is in chaos. As well as the nappies, the night-time gurgling, and the constant feeding, she can barely move for packing cases and the cumbersome musical instruments that her aristocratic French composer husband keeps inventing. And then one evening, a knock on the door brings some unexpected visitors: three kung fu experts bearing gifts for the baby. When the kung fu trio go missing (along with some stolen cars), Jane and Charles suddenly find themselves being interrogated by the police who seem to suspect that the kung fu-ers had links to a mysterious underground organization, and - ma foi! - that Jane's mother-in-law may have a hand in the whole thing too -.