Helena Fontana has a heart condition that claims her life after observing a scene between her husband Luis Miguel and her sister Grazzia on their wedding. Meanwhile Valentina, a female boxer who takes part in illegal fights for the mobster Fernando Valerugo is fatally hit on the ring. Somehow Helena's soul inhabits Valentina's body. Now Helena gets the chance to get even with those who betrayed her. But embarking on this journey, Helena will unveil many secrets including that her daughter, who was assumed dead is actually alive.