My wife and her family humiliated me in public intentionally

Hi, My wife's parents, her sister and her brother-in-law are misleading my wife. My wife also behaves as if she has given me a life and I should be loyal to her. My wife shares each and every thing happens at home including romantic relationship to her parents, her sister and her brother-in-law throughout the day. She behaves exactly the way her parents ask her to behave. Her parents brainwashing her to get separated from me and take away my child from me. They has been trying to get hold of my baby since the he was born. When he was born, they didn't even allow me to see my son. Also my wife doesn't like my mother staying with me. My father is no more and my mother is the one who raised me to this level. My wife abuses my mother very often and threaten to commit suicide or file a false 498a case against me and my mother if my mother continues to stay with us. To worst of all these, she tells everyone that me and my mother having sexual relationship so that her family will ask me to throw away my mother from my place. Yesterday she threatened me that she will commit suicide if my mother stays with me. When I tried to stop her, she created a scene as if we are hitting and she ran away from home and started shouting in public. I was trying to get her inside the home but she said she would bring me and my family to the road and will insult in public. As she said, she brought her family and some Gundas and they all started threatening me, abused me using foul language in public while the entire street was looking at me. I was literally begging them that this is a family matter and we should go and talk inside the house. They kept saying that they want to insult me in the society to spoil my reputation and forcibly took away my child from me. I was helpless as they were creating a scene and they were threatening me. Now I have lost my respect in the society, and they took my child, I do not know what to do. Could someone please advise me?