In Venice in the 1890's, a plain white cat, left to fend for scraps, makes his way into the heart of a cafe owner who has nothing to spare. In no time at all, though, Nini becomes a celebrity, hosting visits from the composer Giuseppe Verdi, the king and queen of Italy, and even Pope Leo XIII. Nini's fame helps save the struggling business. But is his stardom enough to produce a small miracle of a different sort?