What is the main conflict in Crimes of the Heart by Beth Henley?

Often compared to the work of other "Southern Gothic" writers like Eudora Welty and Flannery O'Connor, Henley's play is widely appreciated for its compassionate look at good country people whose lives have gone wrong. Henley explores the pain of life by piling up tragedies on her characters in a manner some critics have found excessive, but she does so with a dark and penetrating sense of humor which audiences as the play's success has demonstrated found to be a fresh perspective in the American theatre.