Jane and Lisbon investigate the death of an heiress on The Mentalist. "Red Lacquer Nail Polish" is the 15th episode of the show's fifth season.
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The Mentalist Season 5 Episode 15 Quotes

If you hadn't mentioned the congealed human fat in the lightbulbs I may have had the stomach to stick around and find out. You're a ghoul.

Jane

Normally I'd be tempted to mock your superstitions but in this case I'm inclined to agree.

Jane