MGM+’s four-parter on Bianchi and Buono’s late-seventies reign of west-coast terror is…very MGM+.

The crime
The serial murders of (at least) a dozen women in Los Angeles CA and Bellingham WA in the late seventies, which the media waited to bestow with the catchy "Hillside Strangler" moniker until cousins Kenneth Bianchi and Angelo Buono started killing women who weren't sex workers.

The story
The culture likes to talk about serial killers' "signatures," in real cases and fictional ones – and in the case of the Hillside Stranglers, the signature element is clear: ligature marks on the wrists, ankles, and necks of the victims. 

But what about the signature element of the case overall? What lets the Hillside Stranglers persist as a "major case" nearly half a century later? What about these murders is still compelling, over and above the customary grimy fascination with the lethally ungovernable?