The Three Taps is the first of Ronald Knox’s detective stories to feature private investigator Miles Bredon. In this case, Miles is sent by his employer - the appropriately named Incredible Insurance Company - to investigate the death of Mr. Mottram, who recently took out one of their so-called Euthanasia policies. The victim was clearly gassed; but whether it was an accident or planned is a matter for some debate.

When Sir Charles Airdrie, owner of Dreams Castle in the Scottish Highlands, gives young Vernon Lathaby - a flamboyant young exhibitionist - permission to search the Isle of Erran for buried treasure, Lathaby takes along his tough hanger-on, ‘Digger Henderson’. However, cautious of being swindled by his partner, Lathaby takes out insurance to protect him, so Miles Bredon is dispatched by the suspicious Incredible Insurance Company to keep a watchful eye on proceedings.

When two brothers, potential heirs, go missing on a canoe trip on the River Thames, private investigator Miles Bredon and his friend Inspector Leyland are called in to investigate what might have happened to the pair. The accumulation of evidence - including cyphers, fake photos, and drugs - leads to a much discussion and speculation, but only a recreation of events will help them to solve the mystery.

When a member of the Reiver family of Dorn is found dead by the roadside, private investigator Miles Bredon is sent north to discover how the death will affect a possible payout of the family’s large insurance policy. Miles takes with him his wife Angela and together they investigate the possible influence of a religious group that Donald Reiver, head of the family, has recently joined.

Crime author Dick Markham is in love again; his fiancée, Lesley Grant, the mysterious newcomer to the village. When Grant accidentally shoots a fortune teller through the side of his tent at the local fair - following a very strange reaction to his predictions - Markham is reluctantly brought into a scheme to expose his betrothed as a suspected serial husband-poisoner. That night the enigmatic fortune teller - and chief accuser - is found dead in an impossible locked-room setup, casting suspicion onto Grant and striking doubt into the heart of her lover.

On a foggy night in Hampstead, London, a party has gathered in an artist's studio to weather the wartime blackout. A civil servant and a government scientist match wits in a game of chess while Bruce Manaton paints the portrait. In the kitchen, Rosanne Manaton prepares tea for the charlady of Mr Folliner. When the murder of 'Old Mr. F' is discovered by his Canadian infantryman nephew, it's not long before Inspector Macdonald of Scotland Yard is called to the scene.

It's 1929, and Ticky Maltravers is the toast of London high society, adored by everyone - or so it seems, until somebody poisons him over dinner. Now it turns out that numerous people with secrets to hide had every reason to wish him dead. But which of them murdered him? For Freddy Pilkington-Soames, newspaper reporter and man-about-town, the question hits a little too close to home.

When two newlyweds move into their new home, only to discover that a corpse has been buried in their basement a few months prior, a case is begun to trace the identity of the victim. With all avenues of investigation approaching exhaustion, a tenuous lead offers a chance for Chief Inspector Moresby and leads him to the amateur criminologist Roger Sheringham, who has recently been providing cover work in a school south of London. Desperate for evidence of any kind, Moresby begins to sift through the manuscript of a satirical novel Sheringham had been writing about his colleagues.

Stephen Munro, a demobbed army officer, reconciles himself to taking a job as a footman to make ends meet. Employed at Wintringham Hall, the delightful but decaying Sussex country residence of the elderly Lady Susan Carey, his first task entails welcoming her eccentric guests to a weekend house-party, at which her bombastic nephew - who recognises Stephen from his former life - decides that an after-dinner séance would be more entertaining than bridge. Then Cicely disappears!

Uncle Willie has come to stay with the Redpaths for the holidays. It is just their luck for him to be found dead the morning after Christmas day, dressed in his Santa Claus costume, seemingly poisoned by his favourite chocolates. Or was there something sinister in the mince pies? If so, was it the ones stashed in his room or those sent to him mysteriously by post? More importantly, since his will was recently redrafted, who stands to gain by this unseasonable crime? 

Two of John Bude's finest Golden Age mysteries return to the limelight. In Death in White Pyjamas a theatre-owner, a 'slightly sinister' producer, a burgeoning playwright and a cast of ego-driven actors have gathered at a country home to read through a script. But before the production reaches the stage, one of their number is found murdered in the grounds wearing what seems to be somebody else's white pyjamas. 

When newlyweds Agnes and Andrew Kinghof are present for the discovery of an over-ripe corpse in the air-raid shelter of their apartment building, the two set out to put their amateur detective skills to work. The dead man's sister is nearly frightened to death by the appearance of a grinning pig's head outside her window, and she claims to be threatened by someone calling himself 'The Pig'. The newlyweds deduce that it must be someone who lives in the same apartment building. 

A dark shadow looms over the Rhineland, where Inspector Henri Bencolin and his accomplice Jeff Marle have arrived from Paris. Entreated by the Belgian financier D'Aunay to investigate the gruesome and grimly theatrical death of actor Myron Alison, the pair find themselves at the imposing hilltop fortress Schloss Schädel, in which a small group of suspects are still assembled. As thunder rolls in the distance, Bencolin and Marle enter a world steeped in macabre legends of murder and magic to catch the killer still walking the maze-like passages and towers of the keep. 

Written in reaction to what Bentley perceived as the sterility and artificiality of the detective fiction of his day, Trent's Last Case features Philip Trent, an all-too-human detective who not only falls in love with the chief suspect but reaches a brilliant conclusion that is totally wrong. Trent's Last Case begins when millionaire American financier Sigsbee Manderson is murdered while on holiday in England. A London newspaper sends Trent to investigate, and he is soon matching wits with Scotland Yard's Inspector Murth.

When the San Angelo drifts into port in the Thames Estuary, telephones begin to ring across the capital and an intricate series of events is set in motion. Beset by dreadful storms in the Bay of Biscay, the ship, along with the 'mixed cargo' it carries, is late. Unaware of the machinations of avaricious importers, wayward captains and unscrupulous traders, Harry Reed and June Harvey are thrust together by a riverside accident, before being swept into the current of a dark plot developing on the dockside.