Still from It's Always Sunny in Philadelphia S5E10
It's Always Sunny in Philadelphia › Season 5

S5 E10: The D.E.N.N.I.S. System

Dennis reveals his foolproof system for seducing any woman to the rest of the gang, but they don't grasp the concept.

Air dateNov 19, 2009
Runtime21 minutes
TMDB rating★ 8.9/10