What is Diane, a genetics research assistant up to with her boyfriend on Criminal Minds. Michelle Trachtenberg guest stars in "Zugzwang" the 12th episode of the show's ninth season.
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Criminal Minds Season 8 Episode 12 Quotes

You see, when men cheat it's below the belt. But when women cheat, it's above the neck.

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Garcia: Every time we have a stalking case I think of Rosanna Arquette.
JJ: The whole Arquette family to choose from and you go with Rosanna.
Garcia: Of course I go with Rosanna because Rosanna Arquette was the inspiration for two seminal songs of my childhood. "Rosanna" by Toto...
JJ: Obviously.
Garcia: ....and "In Your Eyes" by Peter Gabriel. Which gives one pause to think of the myriad of ways a man can be obsessed by a woman. And what is she doing in bed to inspire that kind of obsession? And can she teach us - because I want to know...