Ravaged and sore from giving birth to her first child, Megan is mostly raising her newborn alone while her husband travels for work. Physically exhausted and mentally drained, she’s also wracked with guilt over her unfinished dissertation—a thesis on mid-century children’s literature. Enter a new upstairs neighbor: the ghost of quixotic children’s book writer Margaret Wise Brown—author of the beloved classic Goodnight Moon—whose existence no one else will acknowledge. It seems Margaret has unfinished business with her former lover, the once-famous socialite and actress Michael Strange, and is determined to draw Megan into the fray. As Michael joins the haunting, Megan finds herself caught in the wake of a supernatural power struggle—and until she can find a way to quiet these spirits, she and her newborn daughter are in terrible danger.