The Constant Gardener (Abridged): The beautiful Tessa Quayle is murdered near Lake Turkana in Northern Kenya, the birthplace of mankind. And her putative African lover and travelling companion has vanished from the scene of the crime. Tessa’s husband, a career diplomat and amateur gardener at the British High Commission in Nairobi, sets out on a personal odyssey in pursuit of the killers and their motive. On his way he meets terror, violence and conspiracy, but his greatest discovery is the woman he barely had time to love.

The complete collection of acclaimed BBC Radio dramas based on John le Carré's best-selling novels, starring Simon Russell Beale as George Smiley. With a star cast including Kenneth Cranham, Eleanor Bron, Brian Cox, Ian MacDiarmid, Anna Chancellor, Hugh Bonneville and Lindsay Duncan, these enthralling dramatisations perfectly capture the atmosphere of le Carré's taut, thrilling spy novels.

Call for the Dead (Abridged): George Smiley had liked the man and now the man was dead. But why? Fennan was dead with a note by his body saying his career was finished and he couldn’t go on. Smiley decides to investigate – only to uncover a murderous conspiracy with its roots in his own secret wartime past. A Murder of Quality (Abridged): Miss Ailsa Brimley is in a quandary. She's received a peculiar letter from Mrs Stella Rode, saying that she fears her husband is trying to kill her.

Julian Lawndsley has renounced his high-flying job in the city for a simpler life running a bookshop in a small English seaside town. But only a couple of months into his new career, Julian’s evening is disrupted by a visitor. Edward, a Polish émigré living in Silverview, the big house on the edge of town, seems to know a lot about Julian’s family and is rather too interested in the inner workings of his modest new enterprise.

Nat, a 47 year-old veteran of Britain’s Secret Intelligence Service, believes his years as an agent runner are over. He is back in London with his wife, the long-suffering Prue. But with the growing threat from Moscow Centre, the office has one more job for him. Nat is to take over The Haven, a defunct substation of London General with a rag-tag band of spies. The only bright light on the team is young Florence, who has her eye on Russia Department and a Ukrainian oligarch with a finger in the Russia pie.