3:00 A.M.

3:00 A.M.

Every Friday at exactly 3:00 a.m., someone knocks on the door.

Three knocks.

No voice.

No footsteps.

And when the door is opened...

Someone disappears.

When Alina Reed moves into her late grandmother's abandoned house, she laughs at the town's terrifying legend until the knocking begins outside her own bedroom door.

Now the disappearances have started again.

The police are running out of suspects.

The town is running out of hope.

And every clue points to one impossible truth...

The killer isn't looking for just anyone.

They're looking for Alina.

Some doors should never be opened.