An unusual film in Boisset's career:the director leaves the world of the activist cinema for that,more lucrative ,of the thriller.Actually "folle à Tuer" recalls René Clément's late period which was not his best,by a long shot.Marlene Jobert was the star -along with Charles Bronson- of Clement's "Le Passager de la Pluie". Her character (Julie) in "Folle à Tuer" strongly recalls Mellie in "Le Passager..." Both are rather fragile,even slightly mentally disturbed ,and both are involved in a far-fetched story.Both movies hint at Lewis Carroll's Alice.Here it involves the kidnapping of a child (Julie is his governess)but the plot remains very banal in the end.Only Michel Lonsdale's strange sinister-looking face has got something Carrollesque here.