Concept: the hooded killer continues to kill off all the Riverdale characters we know and love one by one until just Archie is left. Then he kills Archie. Then we cut to Archie lying in bed and opening his eyes. The sun is shining. It was all a dream. Jason didn’t die. No body’s parents are psychotic. Nobody had underage sex with a teacher. Riverdale can then be the fun, happy-go-lucky show we all want.