What is the author's style in 'Night, Mother by Marsha Norman?

Act is a major division in a drama. In classic Greek plays the sections of the drama were signified by the appearance of the chorus and were usually divided into five acts. This is the formula for most serious drama from the Greeks to the Romans, as well as to Elizabethan playwrights such as William Shakespeare. The five acts denote the structure of dramatic action. They are exposition, complication, climax, falling action, and catastrophe. The five act structure was followed until the nineteenth century when Henrik Ibsen combined some of the acts. 'night, Mother is a one act play. The exposition, complication, climax, falling action, and catastrophe are combined in one act when Jessie reveals her intention to kill herself. The drama and the elements of the traditional five acts plays out during the next ninety minutes.