Clip from Season 3 Episode 8 of It's Always Sunny in Philadelphia Season 3 - "Flowers for Charlie".
The effects of an "intelligence pill" taken by Charlie are revealed.
Starring Charlie Day, Glenn Howerton, Rob McElhenney, Danny DeVito, and Kaitlin Olson.
Episodes air on FXX. http://www.fxx.com/sunny
flowers for algernon
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a simple pill