Dove Cameron’s new thriller series *56 Days* has quickly captured the attention of viewers, ascending to the No. 1 position on Prime Video’s U.S. charts just days after its premiere on February 18, 2026. The eight-episode limited series, adapted from Catherine Ryan Howard‘s bestselling novel, has outperformed established titles, including *Cross*, and has become a notable success in a competitive streaming landscape.
This gripping series features Cameron as Ciara Wyse, a working-class newcomer in Boston who enters a whirlwind romance with the affluent Oliver Kennedy, played by Avan Jogia. Their relationship unfolds through a mix of steamy romance and suspense, as the narrative alternates between their passionate early days and a chilling police investigation led by detectives Lee Reardon (Karla Souza) and Karl Connolly (Dorian Missick). The plot thickens when a decomposed body is discovered in Oliver’s luxury apartment bathtub, propelling the story into a complex web of lies and secrets.
The show premiered with all episodes available for binge-watching, contributing to its rapid rise on the Prime Video charts. By late February, it had solidified its position at No. 1, bolstered by strong word-of-mouth, Cameron’s extensive fanbase, and the allure of its high-concept premise. The series also performed well globally, ranking in the top 10 across various markets, including the UK, Canada, and Australia.
Viewership data from Amazon and third-party trackers such as FlixPatrol and Reelgood indicate that the series has significant appeal, achieving an impressive 86% audience score on Rotten Tomatoes. While some critics have pointed to predictable plot twists, many have praised the chemistry between Cameron and Jogia, noting their ability to convey tension and engagement.
Directed by Alethea Jones and executive produced by James Wan, *56 Days* delves into psychological thriller territory with erotic undertones, drawing comparisons to shows like *You* and *Tell Me Lies*. The series’ tight pacing and use of flashbacks effectively highlight the red flags in the couple’s relationship, keeping viewers on the edge of their seats as the investigation unfolds.
The success of *56 Days* underscores Prime Video’s strategy to strengthen its lineup of original thrillers, especially in the face of fierce competition from platforms like Netflix and Hulu. The adaptation benefits from the novel’s established fanbase and has been strategically timed to coincide with a busy winter release schedule. Promotional efforts have included a teaser trailer that emphasizes the tagline, “every good love story needs a murder,” along with Cameron’s social media outreach and cast interviews that discuss the addictive nature of the storyline.
Despite mixed critical reception, the series has been noted for its bingeable format and strong performances. Some reviews have highlighted the series as “short on heat” while others, like those from Variety, have celebrated Cameron’s “enchanting” performance in a “surprising erotic thriller.” Collider called it “the perfect weekend binge for mystery fans,” emphasizing the engaging romance and satisfying plot reveals.
Cameron’s rising star power is evident as she breaks away from her Disney Channel roots, leveraging her music career and social media presence to enhance visibility. As *56 Days* continues to dominate streaming charts, Prime Video is likely to see sustained momentum into March. While there has been no announcement regarding a second season, the strong performance could lead to increased interest in similar adaptations.
For fans of intricate thrillers and character-driven dramas, *56 Days* has emerged as a standout success this February, affirming Cameron’s versatility as an actress and highlighting Prime Video’s commitment to quality genre programming.
