"Proof" is a compelling drama that explores the complex relationships between a father and daughter, centered around themes of mental illness and genius. The story revolves around Catherine, a young woman who has spent years caring for her brilliant but unstable father, Robert, a mathematician known for his groundbreaking work. Following Robert’s death, Catherine grapples with her grief and confronts her father's legacy, as well as her own potential.
The narrative delves into Catherine's struggles with her mental health, drawing parallels between her father's bipolar disorder and her own fears of inheriting his brilliance and instability. As her past and present collide, she faces challenges not only from her own doubts but also from those around her, including her father's former student, Hal, and her controlling sister, Claire.