The father-in-law wishing to hold the wedding at a night club
You are not permitted to agree with your fiancée's father or anyone else in doing what is prohibited by Allah (Glorified and Exalted be He). Moreover, you are not permitted to do what you say of
holding a wedding ceremony in a club where dancing, music, and mixing between men and women will take place. Men and women are not permitted to shake hands with each other as long as they are not Mahram (a spouse or an unmarriageable relative). May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.