Dying or Feeling Better (2008)

After his father leaves home for another woman, 16-year-old Martial has to move with his mother, Sabine, to a more modest apartment. Martial finds it difficult to fit in his new life. His mother offers to help him, but she only makes the situation worse. Martial then forms a bond with two twin sisters his own age, with whom he has a series of exciting and disturbing experiences.

Unfortunately the movie Dying or Feeling Better is not yet available on HBO Max.