’56 Days’: The 7 Biggest Book-To-Screen Changes
What To Know
- 56 Days premiered on Prime Video on February 18, 2026.
- The series is based on Catherine Ryan Howard’s novel of the same name.
- There are major differences between the TV series and the book, including who died.
[Warning: The following contains MAJOR spoilers for 56 Days Season 1 and the novel by Catherine Ryan Howard.]
When Prime Video revealed that their TV adaptation of Catherine Ryan Howard’s novel 56 Days would change settings from COVID-19 era Dublin to present-day Boston, we knew the story would shift a little from book to screen. However, when 56 Days premiered on February 17, the story we watched unfold was completely different from what we read back in 2021.
Both the TV series and novel follow Ciara Wyse (Dove Cameron) and Oliver Kennedy (Avan Jogia), a newly formed couple who seemingly met by chance and rapidly decided to live together. Fifty-six days later — get it? — Detectives Lee (Karla Souza) and Karl (Dorian Missick) arrive at Oliver’s apartment to find a decomposed body in the bathtub. Split between their investigation, Ciara and Oliver’s steamy love story, and both of their shady pasts, the adaptation and novel share a similar framework and backstory, but the similarities stop there.
Below, we’re breaking down all of the key differences between 56 Days Season 1 and the novel by Catherine Ryan Howard. Comment below with which narrative you liked better!
1. The setting
A few years might not seem like they would have a major impact on the plot of an erotic thriller, but when it comes to 56 Days, the difference in vibes between 2021 and 2026 is astonishing. The novel takes place in Dublin at the very start of the COVID-19 lockdown. Having just started dating, Ciara and Oliver decide to move in together, in his apartment, thinking it will be a short and fun sleepover. It’s not. One of them ends up dead.
We can definitely understand why the TV adaptation moved the story out of the pandemic framework. Sometimes reliving 2020 and 2021 isn’t as fun as it would seem. However, this does mean that the screenwriters had to get crafty as to how Ciara would convince Oliver to move into his apartment and make it look like it was his idea. By making her apartment seem unlivable and then getting a fake call from her landlord, she was able to reach the same outcome as we see in the novel.

Prime Video
2. The dead body in the bathtub
If you haven’t read the book, this might come as a major shock: Oliver is the body in the bathtub. What was assumed to be a murder, but turns out to have been (mostly) an accident, actually mirrors a scene in the adaptation when Oliver falls in the bathroom while the shower is on. In the novel, Oliver takes a sleeping pill before discovering Ciara’s diary, revealing that she knew him as the Narrow River Killer since her brother was also involved. Shook, he stumbles into the shower, hits his head, and admits he had framed Ciara’s brother, Shane, for the murder all those years ago. Instead of helping him, Ciara lets him bleed out.
3. The Narrow River murder
While the Narrow River murder still occurs in the book with all the same players involved, the context is a little different. In the series, it appears that three teenage friends got into a physical fight, leading to one of them drowning Paul. In the novel, the boys all seem a little younger, and Paul is just a kid whom Oliver and Shane find rather annoying. For that reason, the drowning appears to be straight-up bullying. Both Oliver and Shane end up going to juvenile detention, but Shane gets a longer sentence, taking most of the blame.
For most of the book, readers are led to believe that Ciara’s brother was Paul, not Shane. This makes the eleventh-hour twist that Ciara is actually seeking vengeance for her brother Shane’s death in prison far more shocking. In both stories, it was Oliver who actually killed Paul, even though Shane took the blame.

Prime Video
4. Oliver’s financial background
In the adaptation, Oliver is incredibly affluent, which contributes to the outcome of the Narrow River murder trial. Instead of Ciara wanting to steal money from him in order to save her mother’s house, her mother is sick in the book, causing Ciara to want to find out the truth about her brother for her mother before it is too late. Bringing money into the picture also gives Oliver and Ciara the out they’re looking for in the end.
5. Dan Troxler
Since Oliver is the body in the bathtub, Dan Troxler (Patch Darragh), the discovered victim in the series, actually doesn’t exist in the book. As readers, that’s why we would have never expected it to be Dan in the bathtub in the series. Color us shocked, to say the least.
6. Linus Finch
Similarly, Linus Finch (Dylan Colton), who takes the fall for Dan Troxler’s murder, also does not exist in the book. Lee and Karl’s story is far less developed, so Lee’s affair with Finch and the subsequent attempted blackmail and shooting do not happen either. Again, as book readers, it was shocking to see a character that did not exist in the book take the fall.

Prime Video
7. The happy ending
Finally, since Oliver dies in the book, regardless of the real love shared between the two, Ciara and Oliver do not get a happy ending. Well, at least, not Oliver. At the end of the novel, Ciara escapes without blame, and Oliver’s murder becomes a cold case. In the series, the two live happily ever after — at least for now — with their baby Shane, also evading any blame for Dan’s death.
56 Days, Season 1, Streaming Now, Prime Video





