Night Watch a suspenseful, under-rated thriller tells the story of a lonely, unhappily married woman who believes that she sees a murder committed in the deserted house across her courtyard. Ellen Wheeler (Elizabeth Taylor) spends her nights alone, drinking, wandering around her living room, and looking out the window. One night she witnesses a murder. She calls the police, who investigate, but find nothing. Her husband John (Laurence Harvey) believes that she has imagined the entire thing, but her friend Sarah (Billie Whitelaw), while skeptical, is sympathetic to her deeply troubled friend. Director Brian G. Hutton fills the film with a number of distracting red-herrings and directs with a leisurely pace which tends to lessen the suspense. However, Taylor is splendid in the central role of a woman who seems to be on the verge of a nervous breakdown, and she creates a sympathetic believable character. Laurence Harvey, in his final performance, is less effective but is believable as the neglectful, emotionally abusive husband. Night Watch has a bloody, surprise ending, which while stretching credibility, is perfectly in keeping with the melodramatic intensity created by Taylor. Night Watch, reminiscent in some respect of Gaslight will be of interest to fans of Elizabeth Taylor and should entertain any fan of psychological thrillers.
~ Linda Rasmussen, All Movie Guide