Mary Haines is a fictional character from the play and film adaptation titled "The Women," created by Clare Boothe Luce. She is portrayed as a wealthy, upper-class woman navigating the complexities of friendship, marriage, and betrayal in a society dominated by women. In the story, Mary faces challenges when she discovers her husband’s infidelity. The narrative explores themes of female empowerment and the dynamics of relationships among women, highlighting the importance of solidarity and self-discovery in the face of adversity.