Vinny Fowler is on the verge of having the life he’s always wanted. After fighting tooth and nail, he’s found love, formed a family, and carved out a lucrative career in construction. But while the future looks promising, the darkness from his past still haunts him.

In the early '60s, in a seemingly more "innocent" time, a group of teenagers were lured into a supposedly haunted house. The place on Sycamore Lane has a morbid history, but that's just hearsay and rumor, isn't it?

Grim Wolds, England: Winifred Notty arrives at Ensor House prepared to play the perfect governess—she’ll dutifully tutor her charges, Drusilla and Andrew, tell them bedtime stories, and only joke about eating children. But long, listless days spent within the estate’s dreary confines come with an intimate knowledge of the perversions and pathetic preoccupations of the Pounds family—Mr. Pounds can’t keep his eyes off Winifred’s chest, and Mrs. Pounds takes a sickly pleasure in punishing Winifred for her husband’s wandering gaze.

Five high school friends are bonded by an oath to protect one another no matter what. Then, on a camping trip in the middle of the forest, they find something extraordinary: a mysterious staircase to nowhere. One friend walks up—and never comes back down. Then the staircase disappears. Twenty years later, the staircase has reappeared. Now the group returns to find the lost boy—and what lies beyond the staircase in the woods.

Newly-minted child psychologist Mina has little experience. In a field where the first people called are experts, she’s been unable to get her feet wet. Instead, she aimlessly spends her days stuck in the stifling heat wave sweeping across Britain, and anxiously contemplating her upcoming marriage to careful, precise researcher Oscar. The only reprieve from her small, close world is attending the local bereavement group to mourn her brother’s death from years ago. That is, until she meets journalist Sam Hunter at the grief group one day. And he has a proposition for her.