Duration: 22m

TV-MA 9.0 Comedy

It's Always Sunny in Philadelphia S3E10

After learning that a serial killer is on the loose, the gang suspects Mac is the culprit due to his shady behavior.

Release Date: October 18, 2007 (USA)

Creator: Rob McElhenney

Cast: Charlie Day, Rob McElhenney, Glenn Howerton, Kaitlin Olson, Danny DeVito, Mary Elizabeth Ellis, David Hornsby, Lindsey Kraft, Brenden Walsh