Chad Ferrin said he’d never seen Dorothea Puente’s episode of the Netflix series “Worst Roommate Ever,” nor had he visited her boarding house where she fatally poisoned residents in the 1980s. He’d been to Sacramento before, but it had maybe been a decade.
What Ferrin, a Los Angeles-based horror movie director, had was an interest in true crime and telling female-centric stories.
“It was finding a story that fit,” Ferrin said. “I came across Dorothea’s story. And it was intriguing.”…