Grey Matter (2018) is a Horror film that follows the Advanced Film class at Rockridge is proud to present their latest feature film, a drama/thriller/comedy based on the short story Grey Matter by Stephen King. Originally published in 1973, Grey Matter is about the lengths one would go to for their family… with a dark twist. Grey Matter is not currently listed with streaming providers in your selected region, but availability can change over time. Fans of horror movies may also want to explore similar titles below.