Intent on winning custody of their grandson who their son injured while stoned, an upper class couple set out to discredit and defame their daughter-in-law in this odd thriller from Claude Chabrol. Stéphane Audran plays the daughter-in-law, however, the majority of the film is curiously not told from her point-of-view but rather the perspective of a man hired to discredit her, played by Jean-Pierre Cassel. As such, the film does derive any juice from Audran wondering whether or not she is going insane (a la 'Gaslight'), which would not necessarily be a problem, except that Cassel's schemes are so strange and convoluted that it is obvious that they will fail before he even puts them into action. His attempts to spread gossip around the boarding house where Audran is staying are fairly credible. At his most incompetent though, Cassel tries to force Audran to eat a drugged candy (!) while his most bizarre plan involves his girlfriend wearing a wig and fondling Audran's landlady's mentally challenged daughter, expecting that the girl will mistake the wigged woman for Audran! With a perfectly terse music score and lots of fluid camera movements, 'La Rupture' still remains very watchable despite the messy plot, and the LSD-induced scenes towards the end need to be seen to be believed. There is also a lot of memorable weirdness throughout, such as Cassel's girlfriend always being nude (or partially naked) and her fondling scene, complete with an X-rated Satanic film projected in a darkened room might well rate as the very strangest sequence that Chabrol ever committed to celluloid.