(Photo courtesy of: House Beautiful) “Kiernan Shipka and Olivia Holt star in Blumhouse’s ‘Totally Killer.’” Riley Fontana Connector Editor Blumhouse’s most recent release, “Totally Killer,” premiered in limited theaters and on Amazon Prime on Oct. 6. Starring Kiernan Shipka and Olivia Holt, the horror comedy movie meets almost every mark it has aimed to hit.…