As Zimbabwe's political and economic crisis deepens, victims of President Robert Mugabe's violent regime are being forced to flee for their lives.
This World enters a world of paranoia and fear, following some of the thousands of Zimbabweans who enter South Africa illegally every week.
They are running from the political and economic crisis in their country.
Some are fleeing for their lives, victims of the Mugabe government's violent political crackdown.
But even in South Africa they cannot escape the terror of the regime.
Death squad rumours
Many live in fear of Zimbabwe's feared Central Intelligence Organisation (CIO) - the country's secret police who are widely suspected by dissidents of conducting surveillance operations outside Zimbabwe's border.
Rumours of death squads and kidnappings are rife.
This World speaks to refugees living in the shadow of this fear, and one young man who fled Zimbabwe after being reluctantly drafted into the CIO.
He claims the training involved being shown how to torture using batons and electric wires. He also says he escaped from Zimbabwe, and that he was followed by CIO agents who have been trying to take him back to Zimbabwe.
As they try to separate fact from fiction, events conspire to make This World believe that they too, might be under surveillance.
Producer: Emeka Onono
Executive Producer: Louise Norman
Editor: Karen O'Connor