Crime-scene photographers Sarah, Hugh, and Mick are summoned to the goriest crime scene they've ever encountered. A pub owner named Harry Warbrick has been found hanged. His murder becomes a sensation because he was England's top hangman. Sir Gerald, owner of the Daily World, announces that they‚ meaning Sarah and her friends‚ will investigate and solve Warbrick's murder before the police do. She and her friends discover a connection between Warbrick's murder and the most notorious criminal he ever executed: Amelia Carlisle.

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.

Narrated by acclaimed British actor Edward Petherbridge, The Last Moriarty is set in London, 1895. On a cold November morning, a young American actress visits 221B Baker Street, desperate for Sherlock Holmes to protect her from the threats of a mysterious, menacing man who has recently appeared in her life. Holmes agrees to help, even though he has just promised the Prime Minister to solve the murder of John D. Rockefeller's security agent before the incident can derail an upcoming British-American summit.

Before Jack the Ripper terrorised London, Police Inspector Samuel Ravenscroft patrolled the streets of Whitechapel. Clever and hard-working, Ravenscroft nonetheless has the worst record in the force. He lets a murderer escape during a chase and is banished to the spa town of Malvern for a water treatment to cure his asthma. Ravenscroft accepts a dinner invitation from a new acquaintance, Jabez Pitzer. Before dinner, the maid finds Pitzer slumped over his desk - dead. Ravenscroft immediately recognises the signs - Pitzer has been poisoned.

When the body of a young man is found stuffed into the tomb of a medieval knight, Parish Constable Daniel Haze is tasked with investigating his first solo murder case. Suspicion instantly falls on the only stranger to arrive in the village of Birch Hill just before the crime took place, but the American captain proves to be an unexpected asset. A former soldier and a skilled surgeon, Jason Redmond is not only willing to assist Haze with the investigation but will risk his own safety to apprehend the killer.

August 1144. Osbern de Lench is known far and wide as a hard master whose temper is perpetually frayed. After his daily ride to survey his land, his horse returns to the hall riderless, and the lifeless body of the lord is found soon after. Was it the work of thieves or something closer to home? With an heir who is cast in the same hot-tempered mould, sworn enemies for neighbours and something amiss in the relationship between Osbern and his wife, Undersheriff Hugh Bradecote, the wily Serjeant Catchpoll and apprentice Walkelin have suspects aplenty.

Josephine Montfort is from one of New York's oldest, most respected and wealthiest families. Like most well-off girls of the Gilded Age, her future looks set - after a finishing-school education, she will be favourably married off to a handsome gentleman, after which she'll want for nothing. But Jo has other dreams and desires that make her long for a very different kind of future. She wants a more meaningful and exciting life: she wants to be an investigative journalist like her heroine, Nellie Bly.

November 1940. Darkness descends, and another anxious night begins for those tasked with guarding the industrial heartland of London from enemy attack. As a policeman patrols the Royal Albert Dock, something catches his eye - a man is sprawled awkwardly across a nearby barge, a dagger lodged in his back. Detective Inspector John Jago of West Ham CID discovers the victim was a dock worker by day and a Home Guard volunteer by night - and there are things even his wife doesn't know about his past.

It is 1910, and the century is full of change. Sir Thomas Pitt, head of Special Branch, has persuaded his son, Daniel, to take on his first case as a newly qualified barrister. Having successfully defended his client and made a lifelong friend, Daniel is summoned to the Old Bailey to assist in the defence of renowned biographer Russell Graves, who is accused of the brutal murder and disfigurement of his wife. When the jury finds him guilty, Graves is sentenced to be hanged in 21 days.

For Newport, Rhode Island’s high society, the summer of 1896 brings lawn parties, sailboat races... and murder. Having turned down the proposal of Derrick Andrews, Emma Cross has no imminent plans for matrimony - let alone motherhood. But when she discovers an infant left on her doorstep, she naturally takes the child into her care. Using her influence as a cousin to the Vanderbilts and a society page reporter for the Newport Observer, Emma launches a discreet search for the baby’s mother.

In 1936, there are paranormal abilities that have slowly seeped into the world, brought to the surface by the suffering of the Great War. The research to weaponize these abilities in England has lagged behind Germany, but now it's underway at an ultra-secret site called Monkton Hall. Kim Tavistock, a woman with the talent of the spill - drawing out truths that people most wish to hide - is among the test subjects at the facility. When she wins the confidence of caseworker Owen Cherwell, she is recruited to a mission to expose the head of Monkton Hall.

The year is 1895. The police don't have the resources to deal with everything that goes on in the capital. The rich turn to a celebrated private detective when they need help: Sherlock Holmes. But in densely populated South London, where crimes are sleazier and Holmes rarely visits, people turn to Arrowood, a private investigator who despises Holmes, his wealthy clientele and his showy forensic approach to crime. Arrowood understands people, not clues.

Caroline and Nathan's former enemy Rasmussen reappears as a magician calling himself The Great Manzini. As Manzini, he kidnaps King Thomas Jefferson the Fourth during a magic show at the Ford's Theater and demands an impossible ransom. A time-traveler himself, Nathan understands how the trick was done, but when he confronts the villain, Manzini sends Nathan 60 years into the future. Nathan returns, unable to explain his absence, and is arrested as an accomplice to the kidnapping and possible murder.

After a past family tragedy for which she holds herself to blame, Dr. Genevieve Summerford wants nothing more than to succeed in her new career as a psychiatrist, and win back the respect of her family and peers. That goal is thrown into jeopardy, however, when one of her patients is arrested for murder - a murder Genevieve fears she may have unwittingly provoked. Desperate to prove to herself and the authorities that her patient is innocent, she is forced to enlist the aid of an influential Tammany captain.

The foggy streets of London's Whitechapel district have become a nocturnal hunting ground for Jack the Ripper, and no woman is safe. Flower girl Constance Piper is not immune to dread, but she is more preoccupied with her own strange experiences of late. Clairvoyants seem to be everywhere these days. In desperation, even Scotland Yard has turned to them to help apprehend the Ripper.