9x15 Mr. and Mrs. Anderson
First Aired: Feb. 19, 2014 on CBS
Summary: The BAU travels to Pittsburgh on the hunt for a pair of suspects that appear to be working together as a team; Garcia and Morgan reveal their Valentine's Day plans for their respective significant others to each other.
Judith Anderson: I told you I'd pick a good one.
Alex Blake: [open quote] Author Jennifer Smith wrote: "Marriage is a mosaic you build with your spouse, millions of tiny moments that creates your love story"
Penelope Garcia: [close quote] "Each relationship nurtures a strength or weakness within you" - Michael Murdock
- Goof (factual errors): Reid uses Karla Homolka and Paul Bernardo as an example of a married killing couple. He says they 'raped, tortured and killed at least nineteen people' but this is incorrect - they killed only three people as a pair, although Bernardo is suspected of raping several others on his own. Reid also mispronounces Karla's last name, he says 'Homolko'.
- This episode makes a rare reference to a Canadian serial killer duo: Paul Bernardo & Karla Homolka, in dialogue by Spencer Reid (Matthew Gray Gubler).