Catherine Ryan Howard’s novel “56 Days” is set for a thrilling adaptation on Prime Video, with James Wan, the maestro of horror, stepping in as producer, as reported by Deadline this week.

Titled “Obsession” and borne from James Wan’s Atomic Monster in collaboration with Amazon MGM Studios, this upcoming series has received the green light for production from Prime Video.

Described as a blend of crime narrative and an erotic, psychological thriller, “Obsession” delves into the tale of Oliver and Ciara, whose whirlwind romance takes a dark turn. Fifty-six days into their relationship, homicide investigators arrive at Oliver’s place to a grim discovery—a brutally murdered, deliberately decomposed body. The question looms: who is the perpetrator? Did Oliver kill Ciara, or was it the other way around?

The series tantalizingly weaves between a high-stakes day in the present investigation and the convoluted path of the lovers’ affair in the past.

Handling the script and executive production are Lisa Zwerling (known for “The Rook” and “ER”) alongside Karyn Usher (acclaimed for “The Rook” and “Prison Break”).

Expressing enthusiasm for the project, James Wan remarked, “We’re thrilled to collaborate with Karyn and Lisa on this propulsive and sexy thriller based on Catherine’s captivating novel. Their vision for the series brings a fresh take for contemporary audiences, while still remaining true to the genre.”