The Walking Dead actor Chandler Riggs and Super 8’s Joel Courtney will star in an adaptation of Stephen King’s Mercy.
According to Heat Vision, the two actors will join Frances O’Connor in the film which will be directed by Peter Cornwell, from a script by Matt Greenberg.
Inspired by H.P. Lovecraft, the short story “Gramma” was written by King for his 1985 short story anthology Skeleton Crew.
Mercy follows two young boys on a visit to the hospital where they learn that their dying grandmother is a witch and that her powers are fueled by a pact with the Ancient Ones.