Something strange is happening to Ana's body. After an accident, she has a prosthetic metal plate and receives a signal from it, which may be a Morse code, a song, or even some critical message to decode. Although it can easily be considered a fantasy set in Buenos Aires, The Major Tones is an exquisite coming-of-age film. Ana lives with his father, an artist, on the city's outskirts. She enjoys her social life, spending time with friends and random people she comes across, trying to figure out what the strange signal means and why her body receives it. Facing the reality at the end of childhood and the beginning of young adulthood, Ana gets over her loss of something essential and discovers new possibilities to set out for her adventure. (Sung MOON)