 Brecht's one-act play "The Elephant Calf" (1926) is a play-within-a-play performed in the foyer of the theatre during his "Man Equals Man".In Jean Giraudoux's play "Ondine", all of act two is a series of scenes within scenes, sometimes two levels deep.This increases the dramatic tension and also makes more poignant the inevitable failure of the relationship between the mortal Hans and water sprite Ondine.