In November 1986, a farmer finds dozens of dead sheep in a meadow. Egon Tiedemann investigates. The autopsy reveals sudden cardiac arrest as the cause of death. For every one of them. At the same time. Their eardrums have burst.
At the same time, dead birds fall from the sky. Charlotte collects the carcasses and makes drawings of them in her sketchbook. 33 years later, the birds fall again.
In 1953, the young Helge also gathers dead birds. 2019, 1986, 1953 — the death of the animals seems to be connected to the 33-year cycle of the wormhole in the cave.