In 1970s London amidst the punk rock revolution, a clever and creative young grifter named Estella is determined to make a name for herself in the fashion world. With a flair for design and an inventive spirit, she befriends a pair of young thieves who appreciate her appetite for mischief, and together they are able to build a life for themselves on the city's streets. Estella's life takes an unexpected turn when her fashion sense catches the eye of the Baroness von Hellman, a fashion legend who is devastatingly chic and terrifyingly haute. The Baroness's sophisticated and cutting-edge style captivates Estella, who becomes engrossed with the idea of being a part of the fashion industry's elite.

As Estella starts to work for the Baroness, she begins to understand the stark difference between the trendy persona she has developed and the revenge-bent Cruella that she has been harboring inside. The relationship between the protégé and her mentor evolves, leading Estella to embrace her wicked side, fully becoming Cruella de Vil. Her flair for fashion, her penchant for drama, and her newfound recognition put her on a collision course with the Baroness, as she seeks to carve out her own iconic status. Entangled in a game of stylistic one-upmanship, Estella, now fully transformed into Cruella, sets out on a path that will cement her legacy in the world of fashion.