The play explores the premise that everyone in the world is connected to everyone else by a chain of no more than six acquaintances. It centers around a young con artist who infiltrates the lives of a wealthy New York couple, claiming to be the son of a famous movie star and a classmate of their children at Harvard. By spinning a web of lies and charm, he exposes the superficial nature of their social world while also revealing the deep-seated racial and class anxieties that lie beneath the polished surface of their lives. The title refers to the idea that any two individuals are connected by a chain of, at most, six other people, which becomes a metaphor for the interconnectedness of human experience and the illusion of separation in society.

The 8965th greatest book of all time