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

"Long Bright River" co-creators Liz Moore and Nikki Toscano on the biggest changes from the book, Amanda Seyfried's prep and a possible Season 2.

"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 actress’s role as a Philadelphia beat cop in this Peacock series seems like an odd fit, but that’s the point. “I just wanted to prove to myself that nothing can feel too foreign,” she said.

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.

Long Bright River is only available to watch on Peacock, which is one of the most affordable streaming services around with an expansive library featuring hit TV shows and movies. Starting at just $7.99/month, this one's totally worth your while. With access to Peacock, you can also watch favorites like Yellowstone and The Traitors.

Amanda Seyfried opens up about Peacock's "Long Bright River," her 40th birthday plans and what song she most wants to hear in "Mamma Mia 3."