Slice, the latest horror movie from the company behind Green Room, The Witch, and Eighth Grade (which I’d argue is the scariest movie of 2018), began with a scribble of an idea: “Person orders pizza to houses. Kills the driver.” That concept, from writer and director Austin Vesely, has been extended into a full-length horror feature starring Chance the Rapper, Zazie Beetz (Atlanta), Joe Keery (Stranger Things), and Paul Scheer (The Disaster Artist).