!!!WARNING. MAY CONTAIN SPOILERS!!!
Twin brother and sister Jacki and Julian(Judy Geeson and Martin Potter) live in a bizarre fantasy world of secret parlour games and childlike innocence. After moving into a luxurious Chelsea house, they are soon sought out and 'adopted' by charismatic small-time criminal Clive Landseer(Alexis Kanner), who has a gambling debt as long as his arm and a sexual appetite to match. Clive seeks to control and manipulate his new playthings, much to the horror of Julian, who has barely suppresed incestuous desires for his sister. However, once one of Clive's rather less forgiving creditors comes calling, the games take a rather unsavoury turn, including blackmail and threats of violence, leading the twins to carry out a terrible act of violence...
This very fine psychological thriller is a welcome addition to my DVD library. Digitally remastered and lovingly presented, it is probably Alan Gibson's best film, although I am also very fond of his two Hammer Dracula entries. The two lead roles are in the capable hands of Geeson and Potter, the former proving once again that she was the British horror scream queen who really could act. As good as their performances are though, the film belongs to Alexis Kanner. His is an extraordinary performance, one so vital to the film, that after the character Clive's bloody exit, the film loses its impetus and meanders towards its downbeat ending.
There are other incidental pleasures to be taken from the film such as the great verbal jousting between the characters played by Freddie Jones and Sir Michael Redgrave and the great soundtrack and sets. Nevertheless, the film never quite recovers from the loss of its most interesting, complex character.
Despite its flaws I would recommend this film, especially to those who are fans of British psychological horrors as this is one of the most intriguing examples of the genre. Another reason to recommend this would be the very welcome inclusion of an audio commentary by Geeson. 4 out of 5