Nails tells the story of four women from different backgrounds and ages who meet in a nail salon. Their repeated encounters will spark a unique friendship, turning them into partners in crime, influencing the most important decision of their lives: to reject who they have become and discover the women they want to be. Lina, Vanessa, Irene, and Marilís are all subjected to chronic stress in their desire to meet all the necessary requirements to be "perfect" in today's world. They represent contemporary femininity. But what has happened to their ability to choose? Are they victims of the expectations imposed on them? These questions will lead the protagonist to rebel against their reality, causing an emotional tsunami in their families. They will be shaken by a decision that will upend their lives, leading to the spontaneous creation of the "Free Women’s Club," a safe space and sisterhood aimed at helping other women resolve their issues.