Sarah is a mathematician who makes the wrong calculation. She's a sensual woman who marries her best friend and now finds herself stuck in a sexually dysfunctional marriage. She searches for a formula to fix her life turning to friends, therapy and potential lovers. A sexual romp filled with humor, pain and introspection as Sarah searches for self-realization.

The narrative is driven by the voice of Sarah but there's a cast of realistic characters shaping the dynamics. The story has a strong sexual theme using humor and introspection to examine sexuality as well as romantic relationships. It goes beyond that as well to explore the roles of friend, daughter, sister, mother and career woman and the obstacles and challenges women confront.

The novel spans twenty years from Sarah and Joe's first meeting to the present.