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It's Always Sunny in Philadelphia S03E10

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It's Always Sunny in Philadelphia : Mac Is a Serial Killer

S03, E10 ()

Frank, Dennis and Dee suspect Mac is the serial killer they read about; they devise a plan to catch him in the act.

  • Danny DeVito,
  • Charlie Day,
  • Glenn Howerton,
  • Kaitlin Olson,
  • Rob McElhenney

  • Brittany Daniel ,
  • Mary Elizabeth Ellis ,
  • Sandy Martin

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