The Favorite (2008)

Raised as sisters, Flora (Patricia Pillar) and Donatela (Claudia Raia) become fierce rivals. Flora, once convicted of murdering Donatela's husband Marcelo, served 18 years in prison. Now free, she aims to prove her innocence, claiming Donatela framed her. At the heart of their conflict is Lara, Flora's daughter, who raised by Donatela and is the heir to a vast fortune. Who can we trust?