mother and daughter movie... most audience would have missed the part where Ramona took out a young asian girl photo, saying she would keep her daughter Dorothy by her side. This actually means Destiny is Dorothy. What a perfect twist. Ramona was probably drugged in a prom, got pregnant with Dorothy, and placed Dorothy at her granny's. This explains the revenge of Ramona drugging people in the movie. Ramona teared up and was remorseful when she hears her own daughter (Dorothy/ Destiny) taking up the jail sentence for the sake of the daughter (Destiny's daughter). Destiny teared up when she hears the interviewer saying flashbacks told by Ramona. Those information and moments that outsiders from the family could not have possibly know. (eg, immigrant parents, father left, mother placed her at grandmother's).
My interpretation so far.. very touching towards the end, mind boggling too.
This is based on a true story, hope the real Ramona & Dorothy aka. Destiny are reunited now and in talking terms.