Chandler Riggs, the child star of AMC’s “The Walking Dead,” and Super 8‘s Joel Courtney are joining the Stephen King adaptation of Mercy, writes THR.
Blumhouse and Wonderland Sound and Vision are behind the movie, which will be released by Universal.
The Haunting in Connecticut‘s Peter Cornwell is directing the horror thriller, which revolves around two brothers (Riggs, Courtney) who go with their mother to take care of their grandma. Unbeknownst to them, the grandmother is a witch, who made an evil deal using black magic years earlier. Matt Greenberg wrote the script.
Frances O’Connor is already on board to play the mother.
Mercy is based on King’s short story “Gramma,” which was first published in Weirdbook magazine in 1984.