If you have watched the serial Bhaabi you will notic it has a simular story.
Saroj had to leave the house, her husband Tilik and her son because she had to find out the truth about her friend Manjun's rape. She said Tilik's brother did it, (and he did) know one believed her. She wanted to take her son with her, but her mother-in-law stopped her. She met someone who happens to be related to her husbands family and he helped Saroj to find out the truth. When the family found out the truth they could not leave with themselves especially the mother-in-law.
I am not sure it will go the same way, but you never know.
I just thought I share this with you.