Stabler and Benson are investigating the double murder of a couple in an apartment building belonging to an eccentric former Rockette dancer, Birdie Sulloway. She invites them into her home and asks her nephew, Chet, to fix them a martini. The detectives decline, they are more interested in solving their case. They discover that Birdie's husband, Marv, owned the Ballerina Room inside the building and where one of the victims worked as a dancer.