After an unsuccessful marriage attempt Sasha needs to leave Budapest and her Hungarian boyfriend to continue her studies in the US. As the day progresses, their special bond makes separating in the morning a difficult choice.

On March 15, 1848, a young firebrand poet, Sándor Petöfi ignites the Hungarian Revolution with his passionate 'National Song', prompting the Austrians to dispatch a ruthless secret agent to assassinate him and suppress the uprising.