Una exitosa entrenadora de box descubre que su novio, un campeón reinante, la ha estado engañando con su propia hermana. Ella se propone vengarse entrenando al único hombre capaz de destronarlo: su archienemigo Kayden.
Shaw Landon has loved Rule Archer from the moment she laid eyes on him. Rule, a fiery-tempered rebel tattoo artist, doesn’t have time for a good girl pre-med student like Shaw – even if she’s the only one who can see the person he truly is. She lives by other people’s rules; he makes his own. But a short skirt, too many birthday cocktails, and spilled secrets lead to a night neither can forget. Now, Shaw and Rule must figure out how a girl like her and a guy like him are supposed to be together without destroying their love…or each other.