The play centers on the political and personal turmoil surrounding the forced divorce and eventual execution of Octavia, the wife of the Roman Emperor Nero. The protagonist, Octavia, struggles against the machinations of Nero and his inner circle, who seek to replace her with Poppaea Sabina. The narrative unfolds through a series of dialogues and monologues that explore the constraints of imperial power and the fragility of life within the Roman court. The play utilizes a classical dramatic framework, emphasizing the tension between private suffering and public political necessity.

Discussion often centers on the unique status of this work as the only surviving complete Roman historical drama. Readers frequently highlight the play's significance as a near-contemporary source for the events surrounding Nero's reign. Critics often analyze the balance between the dramatic portrayal of Octavia's plight and the underlying political commentary regarding the nature of tyranny. The text is widely studied for its philological depth and its effectiveness in capturing the atmosphere of the imperial court. Scholars and readers alike appreciate the inclusion of commentary that helps contextualize the theatrical and historical elements of the piece.