In the last 10 years, “There’s Something Wrong with the Children” director Roxanne Benjamin has established herself as a vital new voice in independent horror on both the producing (the “V/H/S” anthology films) and directing (“Southbound,” “Body at Brighton Rock”) fronts, while also pursuing a parallel career as an episodic television gun-for-hire on shows like “Riverdale,” “Pretty Little Liars: Original Sin,” and “Nancy Drew.” “It’s like having two different careers that just happen to overlap,” she told IndieWire of her dual life as an indie auteur and network TV journeyman.