An investigation into what made women like Aileen Wuornos, Anna Hahn and Dorothea Puente stalk the night in search of victims.

Examining the cases involving 'angels of death', including the crimes of Beverley Allitt and Stella Nickell.

How Judi Beunoano and Genene Jones managed to keep the crimes they committed a secret.

Examining what caused three women to murder innocent people.

The case of two women who murdered their own children because of an obsessive infatuation.

Connecting three women who were driven by different reasons to commit murder.