Free for All (1976)

Eugenia's parents die. She goes to live with Amalita, her close friend. Her grandmother Amalia Pradere a wealth landlady, takes the orphan under her protection. After a chain of events, disappearing her grandchild, Eugenia will take Amalita's place. She will inherit not only Amalia's possessions but also Ezequiel's love, Amalita's widower.