Yerma has been married two years. She wants to strengthen her husband, Juan, so he can give her children. Telling Yerma to stay at home, Juan goes back to his work in the olive groves, and Yerma talks and sings to the child she wishes she were carrying. María, married five months and already pregnant, asks Yerma to sew for the baby. Yerma fears that if she, too, doesn't conceive soon, her blood will turn to poison. The couple's friend, Víctor, sees Yerma sewing and assumes she is pregnant. His advice when he learns the truth: Try harder.