<Tr> <Th> Original release </Th> <Td> August 2 (2017 - 08 - 02)--September 20, 2017 (2017 - 09 - 20) </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.usanetwork.com/thesinner </Td> </Tr> <P> The Sinner is an American drama television series based on the novel of the same name by Petra Hammesfahr . The series was ordered on January 17, 2017 . The USA Network eight - episode limited series premiered on August 2, 2017 and concluded on September 20, 2017 . </P> <P> The series follows the events that happen after a young mother kills someone in public but has no idea why she did so . </P>

How many parts are in the sinner series