Playwright and “Carol” screenwriter Phyllis Nagy has lined up her next film project: an adaptation of Melanie Raabe’s “The Trap.”

Raabe’s debut novel centers on a reclusive, best-selling mystery writer who hasn’t left her home since the murder of her sister 12 years ago. When she sees her sister’s killer on TV, however, she invites him to her home to wring a confession out of him.

Nagy will pen the screenplay. “The Trap” will be published stateside next July.

“Carol” opens November 20.

Here’s the synopsis of Raabe’s book:

For 11 years, the bestselling author Linda Conrads has mystified fans by never setting foot outside her home. Haunted by the unsolved murder of her younger sister — who she discovered in a pool of blood — and the face of the man she saw fleeing the scene, Linda’s hermit existence helps her cope with debilitating anxiety. But the sanctity of her oasis is shattered when she sees her sister’s murderer on television. Hobbled by years of isolation, Linda resolves to use the plot of her next novel to lay an irresistible trap for the man. As the plan is set in motion and the past comes rushing back, Linda’s memories — and her very sanity — are called into question. Is this man a heartless killer or merely a helpless victim?

[via Deadline]