The year is 1861. The American Civil War has just begun, and London arms dealer Daniel Alberton is becoming a very wealthy man. His quiet dinner party seems remote indeed from the passions rending America. Yet investigator William Monk and his bride, Hester, sense growing tensions and barely concealed violence.

When a maid in the upper class Ellison household is strangled, Inspector Pitt is called in to investigate. He finds a world ruled by strict manners and social customs, where the inhabitants of the Ellison's neighborhood appear to be more outraged by the thought of scandal than they are by murder. Inspector Pitt finds a most unlikely ally in Charlotte, the Ellison's spirited daughter. But as the murders continue, Charlotte and Pitt find themselves drawn together by more than the investigation.

On vacation from London on the beautiful Italian coast, 28-year-old Elena Standish and her older sister Margot have finally been able to forget some of the lasting trauma of the Great War. Touring with her camera in hand, Elena has found new inspiration in the striking Italian landscape, and she's met an equally striking man named Ian. Not ready to part from one another, she and Ian share a train trip home to England. But a shocking murder disrupts their agenda, forcing Elena to personally deliver a message to Berlin that could change the fate of Europe.

Scuff has come a long way from his time as a penniless orphan scraping together a living on the banks of the Thames. Now he's studying medicine at a free clinic run by Dr. Crowe. Lately Crowe has grown distracted after witnessing an altercation between a former patient of his named Ellie—a woman he not only treated but grew to love—and her controlling fiancé. It seems someone is forcing Ellie to marry the man, and as Crowe's emotions come flooding back, he sets out to uncover the troubling connection between Ellie, her father, and her betrothed.

Mariah Ellison, Charlotte Pitt's grandmother, accepts her longtime friend Winnie's gracious invitation to spend Christmas with her and her husband, Barton, in their picturesque village. But upon arrival, Mariah discovers that Winnie has vanished without a trace, and Barton rudely rescinds the invitation. Once Mariah finds another acquaintance to stay with during the holiday season, she begins investigating Winnie's disappearance.

The Earl of Wrexford possesses a brilliant scientific mind, but boredom and pride lead him to reckless behavior. He does not suffer fools gladly. So when pompous, pious Reverend Josiah Holworthy publicly condemns him for debauchery, Wrexford unsheathes his rapier-sharp wit and strikes back. As their war of words escalates, London's most popular satirical cartoonist, A. J. Quill, skewers them both.

Following the death of her husband, Lady Darby has taken refuge at her sister's estate, finding solace in her passion for painting. But when one of the house guests is murdered, her brother-in-law asks her to aid the insufferable Sebastian Gage - a fellow guest with some experience as an inquiry agent. While Gage is clearly more competent than she first assumed, Kiera isn't about to let her guard down, as accusations and rumors swirl.

Ian Rutledge returns to his career at Scotland Yard after years fighting in the First World War. Unknown to his colleagues he is still suffering from shell shock, and is burdened with the guilt of having had executed a young soldier on the battlefield for refusing to fight. A jealous colleague has learned of his secret and has managed to have Rutledge assigned to a difficult case which could spell disaster for Rutledge whatever the outcome. A retired officer has been murdered, and Rutledge goes to investigate.

The daughter of a distinguished soldier, Bess Crawford follows in his patriotic footsteps, volunteering to serve her country as a nurse during the Great War. In 1916 she promises Lieutenant Arthur Graham that she will carry his dying request to a brother. When Bess arrives at the Graham house in Kent, Jonathan Graham listens to his brother's last wishes with surprising indifference.

It's 1811, and the threat of revolution haunts the upper classes of King George III's England. Then a beautiful young woman is found savagely murdered on the altar steps of an ancient church near Westminster Abbey. A dueling pistol found at the scene and the damning testimony of a witness both point to one man - Sebastian St. Cyr, Viscount Devlin, a brilliant young nobleman shattered by his experience in the Napoleonic Wars.

England, 1611, and young Hannah Marston envies her brother's adventurous life. But when she stows away on a merchant ship, her powers of endurance are stretched to their limit. Then they reach Japan and all her suffering seems worthwhile until she is abducted by Taro Kumashiro's warriors. In the far north of the country, warlord Kumashiro is intrigued to learn more about the girl who he has been warned about by a seer. There's a clash of cultures and wills, but they're also fighting an instant attraction to each other.

At his most desperate moment, Ethan Saunders is recruited to find his ex-fiancée's missing husband. Meanwhile, Joan Maycott and her Revolutionary War veteran husband distill whiskey on the western Pennsylvania frontier. As their causes intertwine, Joan and Saunders - both patriots in their own way - find themselves on opposing sides of a daring scheme that will forever change their lives and their new country.

It is 1837, and the city streets teem with life, atmosphere, and the stench of London. Sarah Gale, a seamstress and mother, has been sentenced to hang for her role in the murder of Hannah Brown on the eve of her wedding. Edmund Fleetwood, an idealistic lawyer, is appointed to investigate Sarah's petition for mercy and consider whether justice has been done. Struggling with his own demons, he is determined to seek out the truth, yet Sarah refuses to help him.

Sarah Woolson has always dreamed of becoming a lawyer. The trouble is that, in 1880, everyone believes a woman belongs in the home, married and taking care of babies. Using her brains and a little bit of subterfuge, Sarah somehow manages to finagle her way into one of the city's most prestigious law firms, becoming an associate attorney and acquiring her very first client, a lovely young society matron accused of brutally stabbing to death her wealthy but abusive husband.

Lisbon, 1755: A distinguished-looking gentleman emerges from the bowels of a ship freshly arrived from London, and sets into the city with a singular purpose. This is Sebastian Foxx, born SebastiAo Raposa, and his parents were abducted by the Inquisition when Sebastian was just 13 years old.