Underground Game (2005)

In São Paulo, the weird and romantic piano player Martin believes in serendipity and invents a game to find the woman of his dreams. He previously selects a route in the subway, and in the wagon, he chases a woman to see if her destiny is the same as his. Following his procedures, he meets Tania, the mother of an autistic girl; the blind writer Laura; and the mysterious Ana, a woman with a secret past, and he falls in love for Ana.