Ten strangers wake up inside an old locked house. They have no recollection of how they got there. In order to escape, they have to solve the disappearance of a young woman. But a killer also stalks the halls of the house and soon the body count starts to rise. Who are these strangers? Why were they chosen? Why would someone want to kill them? And who—or what—lurks in the cellar?

England 1904. Mirror twins Adelaide and Victoria have spent their lives in orbit of each other–doomed to be in the other’s shadow, their lives are intertwined and inextricable as each other’s identical inverse. Adelaide is dutiful and reserved, happy to remain in her childhood home, Harewood Hall, forever. Victoria wishes for a thrilling life, exploring the world and finding a great romance–but the twins cannot live apart. Visiting Lord Stanley bewitches Victoria with his talk of a life of luxury in New York, but it is obedient Adelaide whom he marries against her will and to Victoria’s fury

Susanna, George, and their eight-year-old daughter, Dina, have been lucky, so far, in these four years since war broke out in their country. Even as their fellow "minority-sect" neighbors and classmates are murdered or imprisoned, George’s loyal work teaching "dominant-sect" literature has kept them fed and protected. But then the day comes: the university fires George—despite his years of collaboration, he is no longer safe. Left without money or allies, it is time for the family to run.

After losing her young son in an accident, Rachel Kennan throws herself into her career as police chief of a small Virginia town to avoid focusing on her grief. Meanwhile, her husband, Finn, a washed-up writer whose alcoholism led to the devastating tragedy that changed everything, struggles to redeem himself before his family completely falls apart. Their two daughters are the only things keeping Rachel and Finn together, but the girls have demons of their own. At the same time, a disturbing crime rocks their tightknit religious community.

Olivia Becente was never supposed to have the gift. The ability to commune with the dead was the specialty of her sister, Naiche. But when Naiche dies unexpectedly and under strange circumstances, somehow Olivia suddenly can’t stop seeing and hearing from spirits. A few years later, she’s the most in-demand paranormal investigator in Denver. She’s good at her job, but the loss of Naiche haunts her. That’s when she hears from the Brown Palace, a landmark Denver hotel.