A young boy, Alfred, is dying, but through the stories about Helium, a magical fantasy world, told by the hospital's eccentric janitor, Enzo, Alfred regains the joy and happiness of his life, and finds a safe haven away from daily life.

A young boy, Alfred, is dying, but through the stories about Helium, a magical fantasy world, told by the hospital's eccentric janitor, Enzo, Alfred regains the joy and happiness of his life, and finds a safe haven away from daily life.