New Photos: HOW I MET YOUR MOTHER “Perfect on Paper” Season 7 Episode 8

HOW I MET YOUR MOTHER “Perfect on Paper” Season 7 Episode 8 which airs Monday October 31 (8:00-8:30 PM, ET/PT) on the CBS Television Network.

Episode Synopsis: Ted finally meets his mystery girl in the Slutty Pumpkin costume. Meanwhile, Barney learns he is part Canadian, and Lily has pregnancy brain, on HOW I MET YOUR MOTHER, Monday, Oct. 31 (8:00-8:30 PM, ET/PT) on the CBS Television Network. Katie Holmes guest stars as Naomi, the Slutty Pumpkin.

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