Posy Pinkerton needs to step from her shell. For this serial monogamist that is late-20s, life was smooth sailing. She's got her physician fiancé, Tom. Her burgeoning career as a side hobby as a visual artist and a medical illustrator. However, after a chance encounter with Jack, a handsome and worldly business man, the shell of Posy begins to crack. She discovers him and he finds her magical, and for Posy it really is an opportunity to use on confidence for the size. Posy is loath to carry it than fiddling flirting, but her cousin Laura, her polar opposite, pushes her to get one final fling before settling down together with Tom, her one and only. Posy's growing desire allows her to perform her self with Jack. Little does Posy understand, as she has been swept up by Jack, she is really making a deal with the devil.