The Pianist of the Lost Hearts

Mélodie, the pianist, whose legend has it that she turns her victims into puppets wherever she goes, with just her music, attracting lost hearts.
Ludwig, a conductor and composer trapped in an artistic block, runs away from everything and everyone until, one night, he is attracted by the melody of a piano playing in the moonlight, in the middle of autumn.

Can Ludwig uncover the pianist's mystery and set all lost hearts free?