"Nothing's On" is a play within the television series The Office, specifically in the episode titled "The Lover." The storyline revolves around the characters' interactions and the comedic situations that arise from their relationships. The play serves as a backdrop for exploring themes of love, betrayal, and the complexities of human connections. In the context of the show, "Nothing's On" is a fictional production that the characters attend, highlighting their personal lives and the dynamics of their workplace. The play's humorous elements reflect the overall tone of The Office, blending workplace comedy with character-driven narratives.