In the middle of a scene, Alice turned around on stage to find that Midge, who’d been playing Carrie, had been killed. And there was a message next to her body: “I am back from the dead. All those who escaped me before will die.” The message, which was written in blood, was signed by none other than the Black Hood. That means a serial killer is once again on the loose in Riverdale. “The first 9 episodes were very Black Hood heavy and, in the second half of the season, there have been other stories that have been at the forefront, but the Black Hood has sort of been bubbling underneath,” showrunner Roberto Aguirre-Sacasa tells EW. “The Black Hood coming back pushes us into the last four episodes, where the threat is immediate. It brings us full circle not just to the beginning of season 2 but really to season 1.”