Susan, a first-year analyst at a trading firm, is the only woman among a tight-knit group of 30 analysts, now that Paulette has just been promoted to associate from third-year analyst. She and the rest of the analysts are summoned to an HR meeting because one of the male analysts has been putting Post-It Notes with drawings of penises in Paulette's workspace. All the analysts know who the offender is, but no one, including Susan, identifies him. After the meeting, Susan realizes that what she had considered a joke is actually harassment that could be hurting Paulette.
The B case follows Susan's decision and ensuing actions.