"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

It still feels surreal for Philly novelist Liz Moore. It was only a year ago she was standing on the set of "Long Bright River," a TV adaptation of her Kensington-based novel inspired by her years of volunteering in the infamous open drug market.

"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.