# B-story > A secondary plotline running beside the A-story — often relationship, theme, or a contrasting character thread that pressures the main pursuit. Also known as B story, subplot ## In practice A B-story earns screen time when it pressures the A-story's pursuit or carries the emotional lesson the main plot cannot say aloud. If you can cut the subplot and the ending still means the same thing, it was filler dressed as ensemble texture rather than dramatic pressure that changes choices. In TV, B-stories keep engines and relationships alive between A-plot turns. In features, they often hold the intimate stakes while the outer plot escalates. Track where the lines collide — collision is where theme becomes drama instead of two polite plots running in parallel without cost. When a B-story swells past its welcome, save a named moment, then cut or compress with a reviewable pass you accept line by line. If the room wants an alternate relationship landing, try a scene-scoped take rather than forking the entire document on a hunch about chemistry. ## Common questions ### How do I know my B-story is too thin? If it only appears as witty asides and never forces a choice in the A-story, it is decoration. Give it a want, a cost, and a collision point. ### Can the B-story be the romantic plot? Often yes — especially when love, trust, or identity is the thematic pressure. Just ensure it changes what the hero can risk in the A-plot. ### What is a C-story? A lighter runner — comic relief, a procedural beat, a minor arc. Keep it thin enough that it does not demand a full climax every episode. ### Should every episode resolve the B-story? Standalone episodes often do; serialized shows may advance it. Either way, the episode should still feel complete for the A-story's turn. ## Related terms - [Beat sheet](https://www.inkwell.software/glossary/beat-sheet): A short outline of a story’s key moments — the beats — used to plan structure before or during drafting without writing every scene yet. - [Act break](https://www.inkwell.software/glossary/act-break): The turn that ends an act — a cliffhanger or reversal in TV, a major structural shift in features — that re-aims the story’s pressure. - [Writers' room](https://www.inkwell.software/glossary/writers-room): The team that breaks story, drafts episodes, and revises together. Rooms need shared drafts, clear history, and a way to try parallel takes without losing accountability. - [Character arc](https://www.inkwell.software/glossary/character-arc): How a character changes — or meaningfully refuses to change — across the story, measured in choices under rising pressure. --- Canonical page: