A son's quest to learn more about his late father unravels a mystery that's baffled US federal law enforcement for over four decades.

It's the go-to Christmas present for the person who already has everything. A gift that promises to tell you who you really are and how you're connected to the world.

Across six episodes, Jenny Kleeman meets the men and women whose lives changed forever after they opened a box that contained a DNA test. Exposing scandals, upending identities, solving mysteries and delivering life-changing news - Jenny investigates what happens when genealogy, technology and identity collide.

Presenter: Jenny Kleeman

In this first episode, a scandal deep in the heart of London's Harley Street is exposed when a man in his eighties receives a DNA test Christmas present from his daughter.

It's the go-to Christmas present for the person who already has everything. A gift that promises to tell you who you really are and how you're connected to the world.

Millions of us have spat into a tube and sent a vial of our DNA to a company like Ancestry and 23andMe. Their tests promise to unlock the truth of our heritage - perhaps even a future foretold in our genes.

Across six episodes, Jenny Kleeman meets the men and women whose lives changed forever after they opened a box that contained a DNA test. Exposing scandals, upending identities, solving mysteries and delivering life-changing news - Jenny investigates what happens when genealogy, technology and identity collide.

Presenter: Jenny Kleeman

Have you ever been curious enough to try and find out who you really are?

Jenny Kleeman meets the men and women whose lives changed forever after opening a box containing a DNA test.

A new six-part documentary series from BBC Radio 4, coming to BBC Sounds weekly on Mondays from 11 September 2023.