This omnibus edition includes the novels The Country Girls, The Lonely Girl, and Girls in Their Married Bliss.

The country girls are Caithleen "Kate" Brady and Bridget "Baba" Brennan, and their story begins in the repressive atmosphere of a small village in the west of Ireland in the years following World War II. Kate is a romantic, looking for love; Baba is a survivor. Setting out to conquer the bright lights of Dublin, they are rewarded with comical miscommunications, furtive liaisons, bad faith, bad luck, bad sex, and compromise; marrying for the wrong reasons, betraying for the wrong reasons, fighting in their separate ways against the overwhelming wave of expectations forced upon "girls" of every era.

The Country Girls Trilogy and Epilogue charts unflinchingly the pattern of women's lives, from the high spirits of youth to the chill of middle age, from hope to despair, in remarkable prose swinging from blunt and brutal to whimsical and lyrical. It is a saga both painful and hilarious, and remains one of the major accomplishments of Edna O'Brien's extraordinary career.