What is the title of the episode where Michael and Jan host a dinner party?

The episode where Michael and Jan host a dinner party is titled "Dinner Party."

It is the thirteenth episode of The Office's fourth season and originally aired on NBC on April 10, 2008. Michael invites Jim and Pam, then Andy and Angela, to his condominium after repeatedly trying to get Jim to accept a social invitation. What begins as an uncomfortable evening quickly exposes the unstable relationship between Michael and Jan.

The guests endure awkward arguments, an undersized pull-out bed, Jan's painting of the couple, and Michael's prized plasma television. Jan's former assistant Hunter's music performance adds another layer of discomfort, while tensions involving real estate, control, and jealousy escalate throughout the night.

The episode was written by Lee Eisenberg and Gene Stupnitsky and directed by Paul Feig. It was the first new episode broadcast after the 2007–08 Writers Guild of America strike, and critics widely praised it as one of the series' strongest installments. Its plain official title is often confused with generic alternatives such as "The Party."