Peter The Grass (Kike Pérez) is a conflicting criminal who leads a chaotic life: he smokes, drinks, drugs and eats too much, taking into account his overweight. One day, as was to be expected, his body scares him and Peter suffers a heart attack. Against all odds, he survives, but he will have to always wear a wristwatch and change his habits if he wants to stay alive. Destiny will lead him to some singular kinds of pilates that will radically transform his existence.