Darius Aster finds the smoking copper tuning fork. The town erased everyone who touched it.

On March 13, 1976, Darius Aster finds the smoking copper tuning fork inside the sleep language laboratory.

The smoking copper tuning fork carries Darius Aster's fingerprint beneath its surface.

At 1:17 a.m., Darius Aster records bees arranging themselves into a face.

The recording predates Darius Aster's birth by forty years.

Then a dead technician asks Darius Aster to look underneath.

Beneath the smoking copper tuning fork, Darius Aster discovers a numbered human tooth.

The number matches a locked cabinet in the sleep lab under Morrow Fen.

Inside, Darius Aster finds payroll cards for people nobody remembers.

Each forgotten worker signed the same crooked surname as Darius Aster.

A fresh card lists Darius Aster's shift as beginning tonight.

The lights inside the sleep lab under Morrow Fen turn violet one row at a time.

Every violet lamp reveals handprints moving beneath the floor while Darius Aster watches.

Darius Aster follows those handprints toward a door painted as concrete.

The door opens onto a copy of the sleep lab under Morrow Fen filled with warm dust.

A clock in the copied room runs through March 13, 1976 again and again.

At each repetition, the smoking copper tuning fork appears closer to Darius Aster's chest.

A ledger identifies the copied room as the witness nursery while Darius Aster watches.

The final ledger entry states that the spa copied guests before releasing them while Darius Aster watches.

Behind Darius Aster, a nursery cot begins rocking without a child.

The blanket rises. A smaller Darius Aster opens its eyes and points at the smoking copper tuning fork.