Under his Atomic Monster banner, horror master James Wan will produce the upcoming Prime Video series Obsession, alongside Amazon MGM Studios. Based on Catherine Ryan Howard’s international bestselling novel 56 Days, the series is described as a mix of a crime story and an erotic, psychological thriller.

Deadline, who broke the news of the series order, details, “It follows Oliver and Ciara, who, after meeting randomly in a supermarket, fall for each other fast, and dangerously hard. Fifty-six days later, homicide investigators arrive at Oliver’s apartment to find an unidentified body—brutally murdered and intentionally decomposed. Did he kill her? Did she kill him? The series intercuts between an intense single day in the present investigation and the twisted trajectory of the young lovers’ affair in the past.”

While the novel is set during the Covid-19 pandemic, with Ciara and Oliver meeting at the onset and moving in together during lockdown, the series reportedly will not be.

Lisa Zwerling and Karyn Usher will write and executive produce the series. “We’re thrilled to collaborate with Karyn and Lisa on this propulsive and sexy thriller based on Catherine’s captivating novel,” says James Wan. “Their vision for the series brings a fresh take for contemporary audiences, while still remaining true to the genre.”