When the writer Ignacio Suárez is sent photos of two murdered women, mirroring a passage of his detective novel, he rushes to uncover who is responsible. What no one suspects is that the key to solving these crimes lies in the forgotten story of Felícitas Sánchez, the midwife turned child-killer in the 1940s.

BASED ON THE TRUE STORY OF MEXICO'S MOST FAMOUS FEMALE SERIAL KILLER.

Once upon a time, there was a woman the press called the Hyena-Woman. Infant Annihilator. Witch. Child-Chopper. Butcher of Little Angels. Monster. The Ogress of Colonia Roma.

Julián and I called her Mother.

When the writer Ignacio Suárez is sent photographs of two murdered women, mirroring a passage of his very own detective novel, he drops everything to uncover who is responsible. What no-one suspects is that the origin of these crimes lies in the forgotten, real-life story of Felícitas Sánchez, the midwife turned child-killer who became known in the 1940s as "The Ogress of Colonia Roma".

Diary entries and newspaper articles come together in this gripping tale to reveal how the woman called Felícitas, who grew up in a small community in La Huasteca, Mexico, became the infamous child trafficker and murderer in the country's capital, and how her long-ago crimes are linked to a wave of killings.

Verónica E. Llaca evokes a tale of cursed bloodlines, forcing us to question the origin and inheritance of evil and how far we can truly escape our past.