Twisted Sisters Season 3 Episode 1 A Song for Sarra

The four Gilbert sisters struggle through a tough childhood made worse when it's suspected that Shannan, the oldest sister, has become a victim of the Long Island Serial Killer. Her mother and sisters embark on a fight for justice for the slain Shannan as Sarra begins a tragic decline into schizophrenia. When Shannan's body is finally found, Sarra's delusions worsen, leaving the question: will both sisters be lost?