Sweeney Todd, the Demon Barber of Fleet Street

Sweeney Todd explores complex themes of revenge, justice, power, dehumanization, and societal corruption, set against the backdrop of Victorian London, and uses musical styles like melodrama, Grand Guignol, and ballad opera. 

Sweeney Todd also touches upon elements of love, desperation, and the dark underbelly of society. The musical ultimately serves as a chilling commentary on human nature, justice, and the consequences of unchecked power and societal neglect.