Who was Joyce Vincent, and how could her body be left undiscovered for three years after she died at age 38 in her London apartment? While these might seem to be simple questions to answer, the revelation of this docudrama (in which actress Zawe Ashton portrays Vincent in dramatized sequences) is that the woman's life─and long-ignored death─remain mysterious, with surviving friends fleshing out only some details of her puzzling biography. 95 min. Widescreen; Soundtrack: English Dolby Digital 5.1.