One of the Claridge's kitchen porters is found dead—strangled. He was a recent employee who claimed to be Romanian, but evidence suggests he may have been German. Detective Chief Inspector Coburg has to find out exactly who he was, and what he was doing at Claridge's under a false identity. Once he has established those facts, he might get an insight into why he was killed, and who by. 

Ada Hobbes has cleaned for Dr Tindall for many years and begins the morning like any other day. But the house is not empty after all. The blood-covered George Tindall is sprawled across the floor. Detective Inspector Harvey Marmion and Sergeant Joe Keedy arrive to a horrific scene. Someone enjoyed killing Tindall, without a doubt. Their investigation takes them out of London and on the trail of three different women as it emerges that Dr Tindall was not the respectable local GP after all, but a bigamist whose third wife had some very interesting connections in the crime fraternity.

The new Detective Inspector Hardcastle mystery - When the body of actress Victoria Hart is found in the early hours of Christmas Day, Hardcastle and Marriotts investigations lead them to the Beaux Belles revue, where a scantily clad Victoria persuaded young men to enlist with the promise of a kiss. It seems the alluring actress had many admirers, and when the recruiting sergeant is found dead, a link to the army can no longer be ignored...

'The Museum Detectives' Daniel Wilson and Abigail Fenton have been contacted by the curator of the National Gallery. He is getting in touch at the request of the artist, Walter Sickert, famously suspected of being Jack the Ripper. The dead body of a young woman, who had been an artist's model, has been found at the back of the gallery, and Sickert has been arrested on suspicion of her murder. When a second similar murder occurs, Sickert is once again implicated.

September 1907. George Dillman sets sail from Liverpool to New York on the Lusitania's maiden voyage. Posing as a passenger, Dillman is in fact an undercover detective hired by the Cunard Line to keep an eye out for petty crimes. But after some uneventful days aboard, the ship’s blueprints are stolen and then a body is found. As Dillman works to get to the bottom of the crimes, he makes an unusual friend, first-class passenger Genevieve Masefield, and the two uncover secrets aboard the ship that prove explosive.

London, 1851. With the opening of the Great Exhibition at hand, interest in mounting in the engineering triumphs of the railways, but not everyone feels like celebrating. In an audacious attack, the London to Birmingham mail train is robbed and derailed, causing many casualties. Planned with military precision, this crime proves a challenge to Detective Inspector Robert Colbeck who fights to untangle a web of murder, blackmail and destruction.

England, 1920. Eleanor Swift has spent the last few years travelling the world: taking tea in China, tasting alligators in Peru, escaping bandits in Persia and she has just arrived in England after a chaotic 45-day flight from South Africa. Chipstone is about the sleepiest town you could have the misfortune to meet. But then, from the edge of a quarry, through the driving rain, Eleanor is shocked to see a man shot and killed in the distance. Before she can climb down to the spot, the villain is gone and the body has vanished.

The Surrays and their five children form a prolific writing machine, with scores of treatises, reviews and crime thrillers published under their family name. Following a convergence of the whole household at their Oxfordshire home, Ruth—the middle sister—decides to spend some weeks there recovering from the pressures of the writing life. Their next return is heralded by the tragic news that Ruth has taken her life after an evening at the Surrays' hosting a set of publishers and writers, one of whom is named as Ruth's literary executor in the will she left behind. 

June 1933. Independent, young Kitty Underhay has been left in charge of her family’s hotel, The Dolphin, on the tranquil English coast. But when several rooms are broken into and searched, including Kitty’s own, she quickly realizes that something out of the ordinary is afoot at the hotel. Soon, rumors are flying in the cozy town that someone is on the hunt for a stolen ruby. A ruby that Kitty’s mother may well have possessed when she herself went missing during the Great War.

Having decided to redecorate Woodside Cottage, Jude has engaged the services of local man Pete, who has painted and decorated the homes of Fethering residents for many years. Pete is currently working on Footscrow House, a large Victorian building being converted into holiday flats. Whilst at 'Fiasco House', Jude and Pete make a surprising discovery behind a wall panel: a woman's handbag! The casual discovery becomes serious when the police identify the handbag's owner as Anita Garner, a young woman who vanished in suspicious circumstances 20 years earlier.

December 1899. After the death of her beloved grandmother, Cleopatra Fox moves into the luxury hotel owned by her estranged uncle in the hopes of putting hardship and loneliness behind her. But the poisoning of a guest throws her new life, and the hotel, into chaos. Cleo quickly realizes no one can be trusted, not Scotland Yard and especially not the hotel’s charming assistant manager. With the New Year’s Eve ball approaching fast and the hotel’s reputation hanging by a thread, Cleo must find the killer before the ball, and the hotel itself, are ruined. 

England, 1930. An antiques dealer is found robbed and murdered in a third class train compartment on a remote Suffolk branch line. The police believe they know who the killer is, and an arrest is soon made. A passenger on the same train, the Reverend Lucian Shaw, country parson and former army chaplain, is concerned that the police have the wrong man and begins an investigation of his own. Before long, Shaw is drawn into a web of intrigue, deceit, and murder which lurks beneath the surface of a seemingly peaceful country parish.

Northumberland, 1809: A beautiful young heiress disappears from her locked bedchamber at Linn Hagh. The local constables are baffled and the townsfolk cry "witchcraft". The heiress' uncle summons help from Detective Lavender and his assistant, Constable Woods, who face one of their most challenging cases.

At a costume party with the dubious theme of 'famous murderers and their victims', the know-it-all amateur criminologist Roger Sheringham is settled in for an evening of beer, small talk and analysing his companions. One guest in particular has caught his attention for her theatrics, and his theory that she might have several enemies among the partygoers proves true when she is found hanging from the 'decorative' gallows on the roof terrace. Noticing a key detail which could implicate a friend in the crime, Sheringham decides to meddle with the scene.

Spring, 1918. The Great War is at a crucial stage, the Germans are making one last push into France, and the Allies are struggling to hold them back. Battle lines are shifting, and men, and their machines, are being sent up and down the front to shore up defenses. Major Heathcliff Lennox, and his batman Greggs, are told to report to their new HQ. They set off on a sunlit day to fly the distance, but the enemy is never far away, and disaster strikes. They're sent crashing to the ground behind enemy lines, where life, death, and love await.