When a parcel was fished from the River Thames in the spring of 1896, no one expected what was inside.

Wrapped in brown paper, tied with white tape, and weighted with a brick… was the tiny body of a baby girl.

The discovery would set detectives on the trail of a woman once known as kind, gentle — even motherly.

A trained nurse and midwife who dedicated her life to caring for others. Her name was Amelia Dyer.

But when detectives finally stepped inside her home, they came face to face with an overpowering stench of decay. They also stumbled upon piles of baby clothes, adoption letters, and white tape. It was clear something unspeakable had happened there.

Who was Amelia Dyer — a troubled woman lost to madness… or one of the most prolific murderers in British history?