How I Met Your Mother S05E24:

Doppelgangers

IMDb 8.4 22 min/episodeRelease:2005
Marshall and Lily think they've spotted Barney's doppelganger, which means that they can start trying to have a baby, but it's really Barney in disguise. Meanwhile, Ted goes blonde and Robin considers taking an anchor job in Chicago.
Genre: Comedy - Romance
Director: Pamela Fryman