Have been harassed mentally by in-laws and the same was shown on my fathers health.

Team, I & my parents were harassed by in-laws[girls family] by baseless acquisitions and cornered everyone for no reason, the impact of the same was shown on my father's health & lead to his untimely death because of trauma, social dignity and unpleasant words received. Girl & their parents did not show up at the last rites too. When I have addressed the same things that happened in a transparent way and return girl had filed an OP against me by citing many false acquisitions [health issues, dowry, harassment, etc..] and demanding money in return. I bought this incident to local police but they are not accepting the case by stating there is a case in court and you cannot file any complaint against your wife. Would like to understand are the laws are only for women & there are no laws for men? Please guide me with the right inputs here. Note: * Girl has taken all the jewellery with her & in return she claimed that her gold is with us in the OP * I have lost every aspect of life & leading a disturbed life to sum it up.