Witnessing this brilliant comedy is a sure-fire mental workout. Think of it as a zany Brit-com meets a Womens Studies doctoral dissertation with more than a healthy dose of Brecht’s Epic Theater thrown in for good measure. Caryl Churchill sets in motion characters whose sexual identities and alliances shift constantly. She asks audiences to accept that most of the characters make an impossible leap in time, from colonial Africa in the Victorian age to contemporary Britain. She then asks audiences to ignore the fact that certain men are played by women, certain women are played by men, children can be played by adults and that even black can be white.