"" (1979), Sondheim's most operatic score and libretto (which, with "Pacific Overtures" and "A Little Night Music", has been produced in opera houses), explores an unlikely topic: murderous revenge and cannibalism. The book, by Hugh Wheeler, is based on Christopher Bond's 1973 stage version of the Victorian original. The show has since been revived on Broadway twice (1989, 2005), and has been performed in musical theaters and opera houses alike. It ran off-Broadway at the Barrow Street Theatre until August 26, 2018.