Charlie lives an average life in an ordinary home, and she isn't complaining. Jack is a good husband and they have beautiful children-but when she discovers her penchant for a secret taboo, she finds that it suddenly turns her sex life from a mundane distraction into a mind-blowing, transcendent experience.

This is the story of a woman's exquisite unfolding, as her sexual discovery and yearning for something more pushes she and her man to the edge, testing boundaries and forcing her to surrender to something much deeper than herself.