Final answer:
Belle Gunness, also known as the 'Female Bluebeard,' was a female serial killer who lured victims through 'lonely hearts' ads to her farm in Indiana. She would kill her victims for their money or insurance policies, and is believed to have murdered multiple victims, including her own children and husbands.
Step-by-step explanation:
The 'Female Bluebeard' referred to in this question is Belle Gunness, a notorious female serial killer who operated in the early 20th century.
Belle Gunness used 'lonely hearts' ads to lure victims, often advertising for potential suitors or handymen to come to her farm in Indiana. Once the victims arrived, she would kill them for their money or insurance policies, often dismembering their bodies and burying the remains on her property.
Gunness is believed to have murdered multiple victims, including her own children and husbands. She eventually disappeared in 1908, leaving behind a farm filled with evidence of her crimes. Her true victim count remains unknown.