Double Girl

Ellie hated her boyfriend for being unfaithful and kicked him out, but her strong sense of inadequacy made her afraid of living alone. Just when she needed company most, Heidi appeared. This shy new tenant became her good sister. They shopped, ate, exchanged clothes and shared everything together. Until Ally returned to her boyfriend's arms, Heidi felt that she was being used and that her place would be replaced by someone else. Her anger caused her to behave abnormally. She dyed her hair, changed her style, and even imitated Ally's every move, as if she wanted to replace her. So Ellie investigates deeply and discovers the truth, and her life is also threatened???