Odd Number (1962)

Brothers Nico and Luis become involved in a love triangle, and when fate causes Nico to fall ill and die, the other marries the woman they both loved. But the newlyweds' happiness is overshadowed by the disturbing presence of their mother, who continues to behave as if her son were still alive. Manuel Antín's innovative debut, stands as one of the great pillars of Argentine cinema of the 60s, in a story that unravels the fabric of reality between memory, mirrors and ghosts that persist even more in death.