“riveting… Among the best debuts i’ve read in years.”
—The Los Angeles Times

“Grippingly suspenseful . . . Transportingly EErie.”
—Publishers Weekly (starred review)

“tense, emotionally resonant . . . Fiercely feminist and viscerally terrifying.”
—Kirkus (starred review)

“terrifying and unputdownable.”
—Karin Slaughter, New York Times and #1 international bestselling author of After That Night

“the most gripping thriller I have ever read.”
—Gillian McAllister, New York Times bestselling author of Wrong Place Wrong Time

“Heart-thumping and mesmerizing.”
—Ashley Audrain, New York Times bestselling author of The Push

“Psychological terror at its finest.”
—Gilly Macmillan, New York Times bestselling author of The Manor House

A razor-sharp thriller about a mother forced to the breaking point when her life and the lives of her children are threatened by an intruder

Home alone with her young children during a blizzard, a mother tucks her son back into bed in the middle of the night. She hears a noise—old houses are always making some kind of noise. But this sound is disturbingly familiar: it’s the tread of footsteps, unusually heavy and slow, coming up the stairs.