This chilling spine-tingler features Doris Day in the atypical role of an American woman, newly married to a British financier (Rex Harrison), who finds herself being stalked on the streets and over the phone by an unseen assailant. With her spouse believing her delusional, will she be able to save her sanity...or her life? John Gavin, Myrna Loy, Roddy McDowall, Herbert Marshall also star. 108 min. Widescreen; Soundtrack: English Dolby Digital mono; featurette; photo gallery; more.