A witty and touching novel about a peculiar triangle: a brother, a sister and mathematics. After the death of their parents, Art and Mimi Brotherton are left to live together under one roof. Art, a mathematical genius, relies on logic, while Mimi uses her heart and takes care of her brother. Her best friend convinces Mimi that she needs to move on, to strive for more in life. So she turns to her brother to help her find love. Art agrees, but on one condition: Mimi will find her soul mate using a strict mathematical principle. But love has its own quirks! When one day Mimi meets the romantic, spontaneous and quirky Frank, also a mathematician, a spark of love sparks in her heart. But Art is convinced that Frank is not who he says he is..