The Benefit of Doubt tells the story of Ariadne (Hannah Croft), a woman who finds herself single after ten years in a relationship, and who is now in her mid-thirties unsure as to what to do with her life. Deciding to go on holiday to Nice, she drifts around before encountering Nick (Nick Marwick), an actor who has just taken, and who is about to start, a job teaching in order to supplement his attempts to break into the world of theatre and film. Finally, she then also encounters Greg (Greg Rowe), a drifter who also finds himself in the south of France. The three strike up an unlikely friendship as they walk around Nice discussing life, love and also their sense of doubt regarding their validity or worth in the world.