London,1953. Josephine Daunt and Susan Dervish both worked for the Ministry of Defence during the Second World War, doing top-secret, highly dangerous espionage work. But in peacetime, they find themselves without a job and feeling useless. Determined to put their talents to good use, they decide to set up a detective agency, with the help of former private eye Bill Mackie. From their Covent Garden office, they handle a steady flow of business.

DI Trueman and DS Riley are reluctant partners in crime-fighting, paired up after high-flyer Trueman suffered a nervous breakdown that left him struggling to get back on his feet. Working with Riley isn’t exactly what the doctor ordered - but the Sergeant turns out to be much more of a help than a hindrance when it comes to cracking cases.

Terminus finds her investigating the 'Lucky Charm' murders, as she searches for an elusive serial killer who haunts the railway station. In The Smithfield Murders, a grisly killing at London's famous meat market sparks another troubling investigation, while in The Net and the Canal, Enfield and her team look into a series of mysterious murders along Regent's Park Canal. Leaves of the Dead presents her with a trio of inexplicable deaths in the British Library - could they be ritual murders?

Glasgow’s finest are on the case in these thrilling radio adaptations, based on the books by Peter Turnbull. In the four-part serial Condition Purple, a murdered prostitute is found in the heart of Glasgow's prosperous business quarter. Could a tattoo on her body hold the key to finding her killer? In Two Way Cut, another four-parter, a headless body without a speck of blood on it has the cops puzzled - and who was the strange figure that PC Hamilton saw running along by the canal?

Jazz-loving Policeman Charlie Resnick is one of the most popular characters in contemporary crime fiction. This thrilling collection brings together three dramatisations and two original radio stories starring the Nottingham-based detective, all scripted by his creator, award-winning author John Harvey.

A BBC Radio 4 crime drama about a Merseyside mum-turned-private eye. Single mum Rosie Monaghan is 39 and redundant. Wondering what to do with the rest of her life – and with two kids to support – she decides to start a new career as a private detective. In series 1 she begins her first investigation, involving a mystery client and a seemingly innocent death that no one else thinks is murder. But being a private eye proves trickier than she thought.

In these two compelling murder mysteries, MI6 officers Henry Colvil and Alex Soames become involved in a pair of complex cases which take them to the very top of the political and religious spheres. Written by acclaimed historian, broadcaster and author Christopher Lee, these gripping spy thrillers star Christopher Benjamin (Pride and Prejudice, Doctor Who) as Henry Colvil and Amanda Redman (The Good Karma Hospital, New Tricks) as Alex Soames. 

Frank Twist and Sarah Gold run The Agency, a paralegal firm based in sunny Manchester. With the help of their team of freelancers, they operate a round-the-clock advice service, going into police stations across the North West to offer help and support to those in custody. In these 26 episodes, their clients include the good, the bad and the ugly: from a teenager pulled in for texting an indecent photo of his girlfriend, to a man detained for suspected arson at a primary school. 

DS Dave Brook is a long-serving, ducking-and-diving police officer who takes armed robberies and violent crime in his stride. But then he is teamed up with young 'grammar school boy' DC Blair Maxton from sleepy Epsom. How will Max cope with the mean streets of his new patch? Among the thrilling cases in these four series, the detectives tackle an armed gang, confront a notorious crime family, search for a missing wife, investigate a gruesome ax murder and the death of a reclusive young woman, and assist ‘The Sweeney’ flying squad.

Two BBC Radio 4 adaptations of Victor Canning’s comic novels about the exploits of a shy Solicitor’s Clerk, starring Richard Griffiths. Edgar Finchley is middle-aged, unassuming and not in the habit of taking holidays - but in these two delightful dramatisations, he unexpectedly discovers the delights of travel as he crosses the Channel to the Continent and explores the English countryside.

Fine Time Fontayne stars as pitman-turned-private eye Stephen J Blackburn in this whimsical detective series. When he’s made redundant from his job at a South Yorkshire pit, Stephen J Blackburn sets out to forge a new career as a private investigator. With his trainee assistant Tracey, he looks into a series of complicated cases ranging from plagiarism to missing persons. In Series 1, the duo are confronted with Hungarian exiles, a philandering husband, a long-lost brother, a purloined TV script and a time-share cash con.

Each Roman Catholic parish compiles a Book of the Dead from the lists of departed loved ones submitted by parishioners. Printed on the front of the envelopes are three words: November Dead List. In this series, a young priest opens one such envelope and discovers not a list of the dead but a list of people he knows to be alive and members of his congregation. At first he thinks it's someone's idea of a joke. Then the people named start turning up dead.

After the death of her GP husband, widow Sarah is battling to bring up her strong-willed 18-year-old daughter, Clare, hindered by her meddling mother, Eleanor. Living on the middle floor of the family home, with Clare downstairs and Eleanor upstairs, Sarah finds herself besieged from above and below as she tries to cope with the demands of both her mum and her daughter. Luckily, she finds solace at work, where her best friend and boss at Bygone Books, Russell, provides a sympathetic ear.

David Calder, David Tennant and Hamish Clark star in these BBC Radio 4 dramas based on the original TV series. George Dixon became one of the best-known and most-loved fictional policemen during the course of three decades of BBC TV's Dixon of Dock Green, in which he was played by Jack Warner. In these 12 radio adaptations, he once again upholds the law on the streets of 1950s Dock Green. David Calder stars as PC George Dixon, with David Tennant and Hamish Clark as PC Andy Dixon.

Charles Paris is his own worst enemy, a louche lush who can resist anything except temptation - especially in the form of women and alcohol. He’s been out of work so long now he feels he may never get a job and he’s driving Frances, his semi-ex-wife, mad. So when he’s offered a small role in a play, she nearly pushes him out of the door. But it seems that ‘The Message is Murder’ is such a terrible production that someone wants to kill off the cast.