The women flash back to moving-in day on Wisteria Lane; how Mary Alice Young brought the women together; Bree gets some frightening news; Susan moves into a trailer.
Castle and Beckett investigate a crime scene that involves a large pool of blood but no victim; Alexis receives news about Stanford.
Ben deals with the consequences of an uncovered lie.
When Ders' dad comes to visit, the guys' friendship is tested.
