Following the burning of the abandoned house across the street, the Fishers wonder if Claire (
Lauren Ambrose) might be the mystery arsonist. In the midst of the arson investigation, Brenda (
Rachel Griffiths) makes an appearance at her first dinner with the family, but her desire to make a good impression on Ruth (
Frances Conroy) is severely compromised when Ruth discovers her and Nate (
Peter Krause) in a somewhat graphic situation. Meanwhile, the family grapples with the funeral arrangements for a murdered Mexican-American gang member, from whom David (Michael C. Hall) mines some unexpected courage that helps him end an argument with Keith (Mathew St. Patrick). ~ Rebecca Flint, All Movie Guide