"The woman who married to kill". Our show is about Belle Dunnes. Belle Gunnes Norwegian-American serial killer. Who moved to the united States to find wealth, What followed were a series of insurance frauds and crimes, escalating in size and danger.  She killed over 13 people, most of them being her past husbands and other men. Belle had an obsession with money so she would get people to marry her then kill them for all of their money hoping that she would never get caught .