Rossi begins to question his own actions following his struggle with a serial killer who seemingly manages to outwit the BAU.
Murray’s (Jeff Garlin) mustache ignites a feud between Beverly (Wendi McLendon-Covey) and his best friend, Bill (David Koechner). Barry (Troy Gentile) is convinced he’s lost Lainey (AJ Michalka) to Boy George.
As Adam (Sean Giambrone) goes to great lengths to avoid swimming at school, jealousy prompts Barry (Troy Gentile) to undermine Erica’s (Hayley Orrantia) effort to make the world a better place.
As Adam and Barry team up in a rap supergroup a la the Beastie Boys, Beverly presses Murray to let her remodel their kitchen.
Beverly helps Erica plan a school dance with a "Dirty Dancing" theme, but turns on her daughter once she realizes it may be inappropriate. Meanwhile, Murray and Adam try to become better dancers, without much luck.