I cannot remember how the MC meets a very rich couple. The husband running a very large business empire. The wife as you would expect is good looking but not stupid. Husband goes to a meeting despite concerns expressed by MC and wife. Husband is murdered and the wife has to take over running the business.
It turns out that the husband had an international transportation business within his business empire and certain drug lords wanted it to help them smuggle their drugs worldwide. Threaten wife unless she sells them or is it let them us the transportation business to smuggle their drugs.
It turns out another family member (?) is involved and will inherit the business if husband and wife are dead.
MC helps wife stay safe and figure the problem out and both live happily ever after.