Edward Albee classic from 1961.
Below from Wikipedia:
The American Dream is an early, one-act play by American playwright Edward Albee. The play, a satire on American family life, concerns a married couple and their elderly mother. They are visited by two guests this particular day who turn their world upside down.
Albee explores not only the falsity of the American Dream but also the American family's status quo. As he states in the preface to the play, "[It is] an examination of the American Scene, an attack on the substitution of artificial for real values in our society, a condemnation of complacency, cruelty, emasculation, and vacuity; it is a stand against the fiction that everything in this slipping land of ours is peachy-keen."