Vivian Lestrange - celebrated author of the popular mystery novel The Charterhouse Case and total recluse - has apparently dropped off the face of the Earth. Reported missing by his secretary Eleanor, whom Inspector Bond suspects to be the author herself looking for publicity, it appears that crime is afoot when Lestrange's housekeeper is also found to have disappeared. Bond and Warner of Scotland Yard set to work to investigate a murder with no body and a potentially fictional victim.

While hot on the heels of serial coupon-racketeer Gordon Ginner, Chief Inspector MacDonald of Scotland Yard receives word of an intriguing incident up in Lancashire – the summer cottage of local farmer Giles Hoggett has been broken into, with an assortment of seemingly random items missing which include a complete reel of salmon line, a large sack, and two iron dogs from his fireplace. What first appears as a simple break-in quickly spirals into a mystery of contested land grabs for fishing between farmers, made all the more enticing to MacDonald when a body is then found in the river.

On a fine autumn weekend Lord Aveling hosts a hunting party at his country house, Bragley Court. Among the guests are an actress, a journalist, an artist and a mystery novelist. The unlucky 13th is John Foss, injured at the local train station and brought to the house to recuperate - but John is nursing a secret of his own. Soon events take a sinister turn when a painting is mutilated, a dog stabbed and a man strangled. 

In the smoke-wreathed gloom of a Parisian salon, Detective Bencolin has summoned his allies to discuss a peculiar case. A would-be murderer, imprisoned for his attempt to kill his wife, has escaped and is known to have visited a plastic surgeon. His whereabouts remain a mystery, though with his former wife poised to marry another, Bencolin predicts his return. Sure enough, the detective's worst suspicions are realised when the beheaded body of the new suitor is discovered in a locked room of the salon, with no apparent exit.

Wealthy Sir Hubert Handesley's original and lively weekend house parties are deservedly famous. To amuse his guests, he has devised a new form of the fashionable Murder Game, in which a guest is secretly selected to commit a 'murder' in the dark, and everyone assembles to solve the crime. But when the lights go up this time, there is a real corpse....