The Third Side of the River (2014)

Nico's father is leading a double life with two women, 17year-old Nico being the oldest child of the illegitimate family. While his father is absent half of the time and only caring about himself during the other half, Nico often has to assume the role of the man in the house, taking care not only of his full siblings, but also his half brother from the official family that his father brings along. He's not allowed into the official family in return though. As the story unfolds, the audience gets to witness his struggle for identity against his father's selfish attempts at parenting.