Sipowicz and Sorenson are beyond frustrated when the FBI and Internal Affairs show up and meddle with their investigation of a family of dirty cops who may have been involved in a robbery-homicide. Meanwhile, Medavoy chafes at being the butt of one of Sipowicz's jokes; Sylvia reaches the end of her rope on the Suarez case; and Diane, still consumed with grief, reaches out for help.

"Upstairs" John fears that Dolores' downward spiral might have ended tragically, and when Sipowicz and Sorenson investigate her disappearance, they face off with a high profile attorney from Sipowicz's past. Elsewhere, a dysfunctional family leads Greg and James into a bizarre murder case, and Jill and Diane get an even weirder case that could be a murder case, a kidnapping case, or no case at all.