First in a two-part documentary which explores the role 'honour' played in a number of high-profile and horrific murders, following police investigations from the initial discovery of bodies right through to trial and verdict. With unique access to the forensic team findings and the murder squad investigations, this part examines the multiple murders of Uzma Arshad and her three children, whose badly decomposed bodies were found in their family home in Cheadle Hulme, near Manchester.