A girl trapped in a marriage with extremely lewd and filthy in-laws, laments:

“I got married 5 months ago. The problem is my in-laws don’t allow me any privacy. After the nikaah at my parents’ house we were put to sit in seclusion for about 1 hour. Then we went to an apartment. My father-in-law, mother-in-law and sister-in-law came with us in the same car. My father-in-law drove. In the car was also my sister-in-law who sat between my husband and I. 
When we got to the apartment, there were only 2 rooms, so they put my sister-in-law with myself and my husband in the same room on the same bed between us two. We stayed there for 3 nights and this continued. She slept between my husband and myself. We didn’t even get to talk because of her presence in the room and between us.
Then I went back to my parents because they dropped me off as our room wasn’t ready yet.  After 6 weeks my father brought me here to my in-laws house and my mother-in-law says the rule of her house is that my room door cannot be closed. Secondly my sister-in- law comes to sleep between us two (husband and wife) again although she is 18 years.  She only doesn’t come on Friday nights but still our door cannot be closed. 
When I complained, my mother-in-law says I must make sabr or I will get divorced. My husband also fought with his parents but they say if we move out they’ll curse him, and they will fire him from work.
I can’t do anything without my mother-in-law’s permission. I can’t even make a cup of tea if she says no.

Our Answer and Comment
This is truly a bizarre scenario. The attitude of your in-laws is HARAAM, lewd, stupid and full of shaitaaniyat. They have absolutely no shame. They are shameless fussaaq and fujjaar. In these evil circumstances prevailing at their home, it is best that you leave and go back to your parents. Your mother-in-law must be a witch, and so is your sister-in-law.
It is incredible that the sister-in-law sleeps between husband and wife. This type of immorality and utter shamelessness is unheard of in Muslim society. As long as they do not prepare a separate apartment for you, remain at your parents. If your mother-in-law threatens you with divorce, it is better to be divorced than to live with such filthy-minded people who are bereft of the slightest vestige of shame.