Bestselling author Riley Sager returns with a Gothic chiller about a young caregiver assigned to work for a woman accused of a Lizzie Borden-like massacre decades earlier.

At seventeen, Lenora Hope Hung her sister with a rope Now reduced to a schoolyard chant, the Hope family murders shocked the Maine coast one bloody night in 1929. While most people assume seventeen-year-old Lenora was responsible, the police were never able to prove it. Other than her denial after the killings, she has never spoken publicly about that night, nor has she set foot outside Hope's End, the cliffside mansion where the massacre occurred.

Stabbed her father with a knife Took her mother's happy life It's now 1983, and home-health aide Kit McDeere arrives at a decaying Hope's End to care for Lenora after her previous nurse fled in the middle of the night. In her seventies and confined to a wheelchair, Lenora was rendered mute by a series of strokes and can only communicate with Kit by tapping out sentences on an old typewriter. One night, Lenora uses it to make a tantalizing offer—I want to tell you everything.

“It wasn't me,” Lenora said But she's the only one not dead As Kit helps Lenora write about the events leading to the Hope family massacre, it becomes clear there's more to the tale than people know. But when new details about her predecessor's departure come to light, Kit starts to suspect Lenora might not be telling the complete truth—and that the seemingly harmless woman in her care could be far more dangerous than she first thought.

The worst thing to ever happen on Hemlock Circle occurred in Ethan Marsh's backyard. One July night, ten-year-old Ethan and his best friend and neighbor, Billy, fell asleep in a tent set up on a manicured lawn in a quiet, quaint New Jersey cul-de-sac. In the morning, Ethan woke up alone. During the night, someone had sliced the tent open with a knife and taken Billy. He was never seen again.

Thirty years later, Ethan has reluctantly returned to his childhood home. Plagued by bad dreams and insomnia, he begins to notice strange things happening in the middle of the night. Someone seems to be roaming the cul-de-sac at odd hours, and signs of Billy's presence keep appearing in Ethan's backyard. Is someone playing a cruel prank? Or has Billy, long thought to be dead, somehow returned to Hemlock Circle?

The mysterious occurrences prompt Ethan to investigate what really happened that night, a quest that reunites him with former friends and neighbors and leads him into the woods that surround Hemlock Circle. Woods where Billy claimed ghosts roamed and where a mysterious institute does clandestine research on a crumbling estate.

The closer Ethan gets to the truth, the more he realizes that no place—be it quiet forest or suburban street—is completely safe. And that the past has a way of haunting the present.