This three-part British miniseries "combines gripping drama with the remarkable history of DNA fingerprinting" (Mirror, UK). David Threlfall (Shameless, Midwinter of the Spirit) stars as DCS David Baker, who heads up the investigation into the brutal murders of two Leicestershire schoolgirls during the 1980s. Only a few miles away, Dr Alec Jeffreys, (John Simm, Doctor Who, Life on Mars) a scientist at Leicester University, invents a remarkable technique to read each individual's unique DNA fingerprint.