Think I should write it?

This plot was inspired by a weird dream I had...I don't know why I dreamed of it but it mostly went like this. I filled in details here and there to create a full story. Tell me if you think I should explore it? =D

Time Period: 18th Century France

Katrina is a poor peasant woman who can no longer support her daughter, Rosemary. She travels to the House of de Gaulle and asks the Mother of the House a favor. If Madame would be so kind as to take in her daughter to raise she would repay her. Madame refuses until Katrina says she would do anything. Madame decides to take Rosemary in if Katrina would work at the Tissu Usine. Katrina thanks her and leaves Rosemary in her care. She ends up being killed in an accident. Madame raises Rosemary as her own, giving her classes in art, music, literature, and other womanly ideals. When Rosemary turned three, everything changed. Madame had a daughter of her own, Sophia. Rosemary is cast aside, given to the care of Emily. Twelve years later, Rosemary finds out that Madame had basically killed her real mother. She begins to defy Madame and give her problems. Rosemary catches eye of Master of House. He chooses her as a mistress with Madame’s permission. Madame believes this will keep her in check. Rosemary is appalled and locks herself in her room. That night, Rosemary sneaks out of room for some food. Master of house finds her. She politely asks him to leave her alone. Master gets angry and drags her to her bedroom, where she is raped. Madame finds out about her disobedience calling her an ungrateful child, posts guards around room. William, one of the guards, becomes her caretaker. Eventually they fall in love and try to escape together. Both are caught due to Sophia’s jealousy. William is banished. Rosemary tries to find him. Year later they find each other, but William is married. Rosemary decides to leave France for good.

It might change here and there, but believe me when I say this, the dream was even more weird than the plot shows it to be. I went from being Rosemary to Sophia to Katrina to Madame to William (that was a weird one...) I know it's not my normal forte but I thought it interesting and want feedback on whether I should persue (spelling?) it or not. So should I?