Rock Story tells the trajectory of rocker Guilherme Santiago, who was very successful in the 1990s and is trying to return to the charts. In the plot, set in Rio, love and music run together, approaching hearts that have the same ideals.

Gui is a former rock star who struggles to reinvent himself in his professional and personal lives after another artist steals his fame--and his wife. Imperfect, careless, but with a giant heart, he will be tested by fate while having the opportunity to change his life by finding out about a teenage son and facing an unexpected new love affair. But to change his own life story, he must make the right choices he did not make in the past.