Retired from their jobs as Bletchley Park code breakers during World War II, four women (Anna Maxwell Martin, Rachael Stirling, Julie Graham, and Sophie Rundle) are reunited when one of them attempts to convince the local authorities she has valuable intuitions concerning where an elusive serial killer might strike next. Rebuffed, she recruits her three former associates so that they can prevent the next killing on their own. Gripping British miniseries co-stars Ed Birch, Mark Dexter. 180 min. Widescreen (Enhanced); Soundtrack: English Dolby Digital stereo; Subtitles: English (SDH); interview.