Melissa

A husband-and-wife detective team look into the murder of one of her friends, whose father--a prominent scientist--has been kidnapped. They find themselves up against a sinister crime organization headed by a mysterious figure known only as "Z".

Jack Radford and his wife Sarah no longer love each other, but money keeps their marriage together. Jack runs the Donnington real estate agency, which Sarah and her brother Edward inherited from their father. Edward, a failed concert pianist, has not been involved in the business for years, but now a real estate scandal threatens to ruin the family business. An apartment building in Spain has collapsed due to structural defects, killing several people in the rubble. The company was heavily involved in the construction and sale. When a dead body is found in the Radfords' pool, Cliff Jordan, nearing the end of his career, gets back to work. At first, all he has is a bloody kitchen knife in his mailbox.

Italian frogman and scientist Paolo Rocello is found dead on a houseboat. The owner of the boat, Mr. Cooper, has disappeared without a trace. The English boarding school town of Medlow is now in turmoil. Of all people, the likeable boarding school teacher David Henderson is increasingly suspected of murder. This is because Katherine Walter, the niece of Dr. Sheldon, saw him on the boat on the day of the murder. However, Dr. Sheldon himself also becomes a suspect. Inspector Ford and Sergeant Broderick are in the dark – until another murder occurs and a completely new perspective on the events emerges...

Janet Freeman, the daughter of the English nuclear researcher Clive and his wife Lucy, is kidnapped.

The London fashion photographer Eric Martin expects his brother Philip Martin to return from Germany after a longer period of military service. When he arrives, Philip Martin reports an accident in Hamburg. He should bring items from the victim's wife to Dublin. However, Philip Martin behaves strangely, so that Eric Martin doubts the story. In fact, his brother travels to the Royal Falkon Hotel in Maidenhead and rents a room there.

A Scotland Yard inspector investigates the murder of a young model strangled with a necktie, uncovering a complex jewel heist ring in the process.

Peter Matty a successful has his world is turned upside down when he meets the beautiful Phyllis Du Salle on a flight to London. Soon after she disappears, and Matty will stop at nothing to find her.

A company director has been murdered by a perfect stranger. DI Alan Milton is put in charge of the case. He is the former fiancé of the victim's secretary. She is now about to marry a mysterious figure with a connection to the murder suspect.

A Francis Durbridge mystery.

A man shrouded in mystery. His name is Harry Brent. Not even his fiancée knows much about him. All she knows is that he runs a small travel agency. In a puzzling turn of events, he becomes involved in the murder of his fiancée's boss. The first thing that becomes clear to Detective Inspector James Wallace is that Harry Brent is obviously a key figure in the case...

Tom Dawson is fatally struck in the head by a golf ball hit by Peter Newton. His son, Harry Dawson, a Scotland Yard inspector on leave, does not believe it was an accident. He arranges to meet Peter Newton, but finds him murdered in his car outside his apartment. Chief Inspector Yardley and Inspector Nat Fletcher now suspect Harry Dawson.

Three agents stir up a hornet's nest of greed, betrayal, and intrigue.