The last film made by the illustrious Launder & Gilliat team is a psycho-thriller that desperately wants to be praised as "Hitchcockian" and even recruits Bernard Herrmann, Hitch's favourite composer, to write the score. Perhaps the Hitchcock film it most resembles, however, is "Frenzy" both seem to be the work of ageing filmmakers trying to get "with it".
"Endless Night" is extremely faithful to Agatha Christie's source novel (it may be the closest-ever filming of one of her novels) but neither of the two protagonists seem to come across with the same conviction that they do in the book. Hayley Mills struggles with a difficult part (Ellie is a fairly insipid character) while Hywel Bennett somehow never convinces as the enigmatic Michael.
There's lots of fun spotting familiar faces in the supporting cast, including an uncredited Nicholas Courtney (the Brigadier from "Doctor Who") as the auctioneer. Per Oscarsson is good as the insightful architect Santonix, who guesses something of what is going on, although our admiration for him is lessened by the hideously vulgar house he builds (which all the characters acclaim as a masterpiece!) I can't help wondering what Dame Agatha's loyal fans made of this film; the setting in an idyllic corner of rural England is traditional enough but the atmosphere is a great deal darker than usual. The novel, written in 1967, represented quite a bold departure for the writer (and a successful one) but the film at times descends into banality. Having said that, the twee nature of Ellie and Michael's romance gives the conclusion much more impact and the final images are startling.