What is the setting of Shadowlands by William Nicholson?

Shadowlands is a drama set in the 1950s. Much of the action is confined to Oxford, England, except for a brief scene in Act II that takes place at a hotel in Greece. Most of the scenes in Oxford are set in Lewis' world: a lecture room, his home and study, the main dining hall at Oxford, and the surrounding streets. When Lewis and Joy first meet, they have tea at a hotel with Douglas and Warnie.