Andrew Marr talks to the best-selling author Martin Sixsmith about his latest book which tells the story of a daughter's search for the truth about her beloved father. Secrets, corruption and political intrigue are uncovered as they travel from Britain to Pakistan. There's more political scandal and family drama from the Nigerian author Chibundu Onuzo in her latest novel, Welcome to Lagos, and the playwright Oladipo Agboluaje imagines a political revolution in 21st century Nigeria and the moral compromises made in the pursuit of power and political change. Laurence Cockcroft is the co-founder of Transparency International in the UK and in his latest work turns his attention to the flavour of corruption in the West.

Producer: Katy Hickman.