"We can see ourselves in each of these people, and that's the point of storytelling,” Seyfried tells PEOPLE of the show, now streaming on Peacock

The Allentown native plays a Philadelphia police officer in the Kensington-set show based on Liz Moore's book.

For Amanda Seyfried, the Peacock limited series offered a rare opportunity to play a character adapted from a book while working closely alongside the author, Liz Moore.

Amanda Seyfried is the star of the new suspense thriller series Long Bright River, which is based off of Liz Moore’s January 2020 novel of the same name.

The eight-episode adaptation of Liz Moore's novel tells a story of sisterhood, addiction and murder set in the Kensington neighborhood of Philadelphia.

Amanda Seyfried says there were two major reasons why she wanted to star in Peacock's adaptation of Liz Moore's best-selling novel "Long Bright River" -- the location and the fact it cast her against type.