What a happy Grimm scene! This is courtesy of the episode "Eyes of the Beholder."
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What's going on with Juliette on Grimm? "Eyes of the Beholder" is the tenth episode of the show's third season.
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Grimm Season 3 Episode 10 Quotes

I'm not impressed!

Juliette

You don’t realize how different you and Nick and Hank are. That you don’t judge or, more importantly, cut off our heads.

Rosalee