There is nothing unusual or remarkable about the Swart family, oh no, they resemble the family from the next farm and the one beyond that, just an ordinary bunch of white South Africans, and if you don’t believe it then listen to us speak ...

The many voices of The Promise tell a story in four snapshots, each one centered on a family funeral, each one happening in a different decade. In the background, a different president is in power, and a different spirit hangs over the country, while in the foreground the family fights over what they call their farm, on a worthless piece of land outside Pretoria.

Over large jumps in time, people get older, faces and laws and lives all change, while a brother and sister circle around a promise made long ago, and never kept ...

The story of a murder, a miscarriage of justice, and a man too innocent for his times...

Mahmood Mattan is a fixture in Cardiff's Tiger Bay, 1952, which bustles with Somali and West Indian sailors, Maltese businessmen and Jewish families. He is a father, chancer, petty criminal. He is a smooth-talker with rakish charm and an eye for a good game. He is many things, but he is not a murderer. So when a shopkeeper is brutally killed and all eyes fall on him, Mahmood isn't too worried.

Since his Welsh wife Laura kicked him out for racking up debts he has wandered the streets more often, and there are witnesses who allegedly saw him enter the shop that night. But Mahmood has escaped worse scrapes, and he is innocent in this country where justice is served.

Love lends him immunity too: the fierce love of Laura, who forgives his gambling in a heartbeat, and his children. It is only in the run-up to the trial, as the prospect of returning home dwindles, that it will dawn on Mahmood that he is in a fight for his life - against conspiracy, prejudice and cruelty - and that the truth may not be enough to save him.