Serial killers are undoubtedly one of our darkest fascinations. With countless TV shows, books, and movies out there revolving around them, it's no secret that serial killers are compelling. However, what a lot of people might not know is that there are many terrifying female serial killers out there - some with astronomically high body counts.
Many of these women have killed their husbands and children. Some committed horrible acts for monetary gain, and others for sexual thrills. Some, when put in positions of authority, or in the position of being caregivers, abused their positions and took the lives of vulnerable people. Some killed the sick, the elderly, and even babies. Take a look at some of history's most disturbed female serial killers below - then check out this list for even more depraved women.