Welcome home. You'll never feel safe again.

When Sarah unexpectedly inherits a secluded estate in North Tahoe from an uncle she never knew, it feels like fate. A fresh start. A lifeline. Her husband, Logan, isn't convinced. Something about the house—about the deal—feels off.

Then there's Phil.

A stranger, yet always nearby. Too interested. Too familiar. He lingers at the edges of their new life, watching. And when the strange occurrences begin—doors left open, objects disappearing, eerie phone calls—Logan knows it's not just paranoia.

Someone is knocking.

And when they finally uncover the truth, they'll wish they never opened the door.