<Tr> <Th> </Th> <Td> "In the Dark: Part 1" </Td> <Td> Ulrik Imtiaz Rolfsen </Td> <Td> Danny Brocklehurst </Td> <Td> 25 July 2017 (2017 - 07 - 25) </Td> <Td> 6.41 </Td> </Tr> <Tr> <Th> </Th> <Td> "In the Dark: Part 2" </Td> <Td> Ulrik Imtiaz Rolfsen </Td> <Td> Danny Brocklehurst </Td> <Td> 1 August 2017 (2017 - 08 - 01) </Td> <Td> 6.38 </Td> </Tr> <P> Filming for the series began in April 2017 in Manchester and Marsden . </P> <P> The Daily Telegraph's Michael Hogan gave the first episode three stars out of five, noting that: "In the Dark did show promise and could yet come good . It was taut and tensely atmospheric with an intriguing premise which found its heroine caught in the middle between police and prime suspect ." </P>

Where was in the dark tv series filmed