"The Staircase"--a documentary--is surely one of my favorite ten (fifteen?)-hour films. It's about Michael Peterson, who maybe killed his wife down South. Michael called the cops to say he'd found his wife at the bottom of a staircase. But there were weird lacerations on the head of the corpse: If just a fall occurred, why would there be lacerations? Had Peterson murdered his wife? Had Peterson had a physical fight that grew in intensity, and led to manslaughter (semi-accidental death)? Some said the lacerations came from a blow poke--but then the blow poke was discovered, and it didn't have any traces of blood. Some say the lacerations came from an owl attack. But how often do owls attack humans? The story only grows weirder. Years before (maybe) killing his wife, Peterson (maybe) killed a family friend, and used the same staircase plot! Also, someone in the prosecution was pretty much transparently homophobic. (Parker Posey was born to utter the line: "Can...