Erin (Ellie Kemper) struggles to make the Halloween party at the office exactly how Andy (Ed Helms) and Robert California (two-time Emmy Award winner James Spader) want it. Meanwhile, Jim (John Krasinski) and Pam (Jenna Fischer) argue about whether ghosts are real, and Dwight (Rainn Wilson) bonds with Robert’s 11-year-old son, Bert. B.J. Novak, Leslie David Baker, Phyllis Smith, Angela Kinsey, Brian Baumgartner, Oscar Nunez, Kate Flannery, Paul Lieberstein, Mindy Kaling, Craig Robinson, and Creed Bratton also star.