Zero Mostel repeats his stage role as Pseudolus, the cunning Roman slave who'll do anything to win his freedom. The plot hinges on three Roman houses next door to each another. One is the home of Pseudolus' masters: the philandering Senex (Michael Hordern), his domineering wife Domina (Patricia Jessel), and their handsome but empty-headed son Hero (Michael Crawford). The second house is a brothel belonging to unctuous procurer Lycus (Phil Silvers). The third house has long been empty, in that its owner, the senile Erronious (Buster Keaton), has gone on a long journey to find his children, who were kidnapped in infancy by pirates. This all-star cast scam their way through this boisterous romp amidst gorgeous girls, mistaken identities, stunning surprises, cunning disguises and great Sondheim songs.