"Which witch is which?" is a playful phrase that captures the essence of John Updike's novel "The Witches of Eastwick." The story revolves around three women in a small town who discover their extraordinary powers and the complexities of their identities. As they navigate their relationships and newfound abilities, they encounter a mysterious man who complicates their lives further, leading to a blend of magic and reality.

The novel explores themes of feminism, friendship, and the struggle for self-definition. Updike's writing delves into the characters' desires and the societal expectations placed upon them, making the narrative a thoughtful commentary on the nature of womanhood and power. The interplay of witchcraft serves as a metaphor for the women’s transformation, raising questions about control and autonomy in their lives.