What best legal action shld be taken against my wife & her family

My wife is staying away from me since 1 year and her family members took away and provoke her to stay away from me and live with them whole day she is in constant touch with her mom who tries to manipulate her and if torchures me mentally by making stupid demands against my economical will. Whenever anything wrong happens all her family members blames me without listining to my side of story. They have tried to take legal action against me 2 times .Her brother uses foal language against me and threatened my family to screw up my brother and mother by putting us all behind bars if we won't consider his sister's(My wife's) dominance in our house. I am feeling stucked seems no way. I want to get divorced without have getting into any trouble, neither me not even my family. One more thing we have 10 months old daughter too. My wife has also asked me several times to get seperated/ divorced and she says that only she has right upon the daughter not me, though I am in much better financial position than her family.