Is it illegal to send a video of Xiaosan and her husband opening a house online?

Violate the law, invade privacy and spread pornography. If you have this evidence, sue for divorce. In addition to dividing all the property of the husband and wife, you can also claim compensation for mental losses. Pay some money and forget about that person. Find a good one later. Don't waste time and energy on this matter. Think of people who love themselves. In addition to love, they are more family and friendship. Have time to do something meaningful.