Peacock’s The Hillside Strangler Investigates 2 Killer Cousins

Horror in the hills of Los Angeles.

E! News has the chilling first look at Peacock’s new true crime special, The Hillside Strangler: Devil in Disguise. The four-part docu-series—which premieres Aug. 2—will re-examine the terrifying story of notorious serial killing cousins Kenneth Bianchi and Angelo Buono Jr. who murdered nearly a dozen L.A. area women in the 1970s.

“In Los Angeles, somebody or a team has been murdering girls—lots of them,” a decades-old news report declares in the trailer.

Soon, tension swept through Los Angeles.

“Everybody was really on edge and worried,” Dr. Lois Lee, founder of the anti-sex trafficking charity Children of the Night, adds. “They could be next.”

The preview teases an in-depth look at Bianchi’s arrest and subsequent claim that he had multiple personalities.

“If he had multiple personalities, why didn’t I ever see one?” Bianchi’s former girlfriend, Sheryl Kellison, questions in the clip.

But law enforcement officials quickly began to question Bianchi’s story.