In the fragile space between life and death, Florida prison inmates sit in a damp jail cell waiting to learn their fate.

Herman Lindsey spent three years in Florida State Prison living in the shadow of death before he was pulled from its clutches by an overturned conviction.

Sixteen years on, the memory of that liminal space bridging this world to the next still hangs over him like a spectre.

'On the night of someone being executed, you will see a spirit walk down the hallway,' he says matter-of-factly.

'That is something that's not a tale. The majority of people on Death Row will tell you they have seen it themselves.'