Doing the King’s Work

You Sister’s Sister star Mark Duplass wants to get his Stephen King on.

By which, of course, I mean he is set to star in an adaptation of one of the author’s works.

Duplass is joining Frances O’Connor (A.I.) and Dylan McDermott in Mercy, the story (based on the King short Gramma) of a single mom and her two boys caring for her mystically powered mother (Shirley Knight).

Right on, guy.

Photo: Time.com.