56 Days is an American thriller television series developed by Karyn Usher and Lisa Zwerling for Amazon Prime Video. Based on Catherine Ryan Howard's 2022 novel of the same name, and executive produced by James Wan, the series stars Avan Jogia, Dove Cameron, Karla Souza, and Dorian Crossmond Missick. It alternates between two timelines, following Oliver and Ciara's relationship after meeting in a supermarket, and 56 days later, when a corpse is found in their apartment with two detectives investigating the murder.