Ted makes his yearly pilgrimage to the rooftop Halloween party in search of a girl dressed as a pumpkin who he met years ago. Meanwhile, Robin is dumped after driving her new boyfriend away with her independent ways.

After agreeing to take things slowly and not have sex for a month, Ted and Victoria decide that they have waited long enough.

Marshall tries to get used to being single in a world that is very coupled-oriented. Barney intended one-night-stand won't go away. Barney uses Lily to get out of his "horrifying" situation. Lily finds a place to stay.

Ted almost ruins Christmas for everyone when, still carrying around anger toward Lily, he calls her a horribly disgusting name. Robin tends to Barney while he has a cold.

Marshall and Lily's plan to buy an apartment is hampered by mistakes and Lily's hidden debt.