Cupido confuso (1970)

Nico wants to become independent with his neighborhood colleague, Raca, but she doesn't want ties. Fed up with his parents, Nico leaves home and rents a room on the outskirts. Despite the distance, he begins to hang out with Leo, Raca's little brother, a boy who is getting hormones, because he wants to transition into a woman. Nico is torn between the love of his brother or his sister. Meanwhile, their respective families fall apart, because in one there is no love nor in the other fidelity.