Prime Video has officially unveiled the trailer and key art for its upcoming erotic psychological thriller series 56 Days, and it’s already sending chills across the internet. Based on Catherine Ryan Howard’s best-selling novel, the eight-episode series is set to premiere exclusively on Prime Video on February 18, 2026, across more than 240 countries and territories worldwide. With its seductive tone and shocking twists, 56 Days promises to deliver a gripping blend of romance, obsession, and murder.
The newly released trailer introduces viewers to a dark, intimate world where passion quickly spirals into danger. The series positions itself as a high-stakes psychological thriller — one where secrets fester beneath intense attraction, and love becomes a deadly game. Showrunners and executive producers Lisa Zwerling and Karyn Usher, who adapted the novel for screen, shared their excitement about bringing the story to life. They praised author Catherine Ryan Howard’s book for providing “a sexy, emotional thrill ride where everything pays off in the end.”
At the heart of 56 Days are Oliver and Ciara, two strangers who meet unexpectedly in a supermarket. What begins as a chance encounter soon explodes into a fast, consuming romance. Their bond deepens rapidly, blurring the line between devotion and obsession. But exactly 56 days later, the story takes a horrifying turn. Police arrive at Oliver’s apartment to find a brutally murdered, unidentified body left to decompose — launching a chilling homicide investigation.
The narrative unfolds across dual timelines, shifting between the tense present-day police inquiry and the passionate past that built the couple’s intense relationship. As the story unravels, viewers are drawn into a disturbing mystery. Did Oliver kill Ciara? Did Ciara kill Oliver? Or is the truth hiding behind an even darker secret?
Dove Cameron stars as Ciara Wyse, while Avan Jogia plays Oliver Kennedy. They are joined by Karla Souza as Detective Lee Reardon and Dorian Missick as Detective Karl Connolly. The cast anchors a story that mixes emotional intensity with psychological suspense.
Behind the scenes, the series boasts major creative talent. 56 Days is written and executive produced by Lisa Zwerling and Karyn Usher, with horror heavyweight James Wan, Michael Clear, and Rob Hackett producing under the Atomic Monster banner. Danielle Bozzone serves as executive producer for Atomic Monster, while author Catherine Ryan Howard joins as co-executive producer. Sandrine Gros d’Aillon also executive produces. The project is produced by Amazon MGM Studios in collaboration with Atomic Monster.
With erotic tension, fractured storytelling, and a murder mystery at its core, 56 Days is shaping up to be Prime Video’s most provocative and talked-about thriller of 2026.