Trivia: In the promos for season 4 you see the characters shopping in a small grocery store to the song "Feeling Good" by Nina Simone. This is a tribute to a scene in the movie "Point of No Return" where Bridgette Fonda's character does the same thing.
Trivia: Frances Conroy plays Peter Krause's mother in the series, even though in real life she's only 12 years older than him.
Chosen answer: It is strongly implied that Lisa was murdered by her brother-in-law Hoyt, with whom she had been having an affair. When Nate confronts Hoyt about Lisa's disappearance, Hoyt shoots himself dead before the question is finally resolved.
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