A singular mix of social criticism (the ultra rich take their toll) and slapstick comedy, even "nonsense" : a 48 year old mama's boy (singer Philippe Katerine - with a toupee) falls in love with a charming subway ticket collector (just before the station's ticket office closes in favor of a magnificent automaton). The young lady is charming (of course, it's the graceful Anaïs Demoustier who lends her plasticity to Ava) but poor, a mortal sin in the eyes of the "Queen Mother" (the monstrous Josiane Balasko). However, her son's pickle is not too clever and the future Château-Têtard (that's the name of that nice family) is late in coming. The young Ava gets bored, escapes from the frozen interior of the mansion where she now lives and what was supposed to happen happens, she falls into the arms of a young bearded man, more in line with her age and her appetites. Her shrew of a mother-in-law (in open war against the one she elegantly calls "little whore") has suspicions and complications accumulate (especially following the unusual aggression of our two lovers by a wild couple of pro-Brexit Englishmen).
The laughs are uneven, there are a few dull moments and some redundancies but the whole remains entertaining while offering a criticism of the ultra-rich certainly caricatured (is not the caricature however an art in itself, eh, Honoré Daumier?) but relevant. The Château-Têtard family is rich because they were "wise enough" to sell their products "legally" and to the "right people" (the Nazis, Pinochet). A nice illustration of the saying, money has no smell).
Not the ultimate masterpiece, but Antonin Peretjatko's biting comedy is a worthwhile entertainment for those who like the genre.