If It's A Sin(1989)

Overview:

While Irma and her daughter were in the United States, Jo, the former's high school classmate, was assigned to look after their house. However, Jo began stealing a lot of stuff, including her clothes and important documents. By the time she was brutally mauled by Alvaro, her ex-lover, she decided to use them to steal her identity by undergoing plastic surgery. With Jo becoming the false Irma, she made a lot of changes and took vengeance against Alvaro and his lover, and married Dan, Irma's high school love. When the real Irma returned, she confronted her and vowed to take everything she had stolen from her.