Eva, an ex-dancer, is now living in a wheelchair, unable to walk. When her friend Sophie gives her an old wooden antique advent calendar before Christmas, she realizes each window contains a surprise that triggers repercussions in real life: some of them good,

An ambitious carnival man with a talent for manipulating people with a few well-chosen words hooks up with a female psychologist who is even more dangerous than he is.

Following the events at home, the Abbott family now face the terrors of the outside world. Forced to venture into the unknown, they realize that the creatures that hunt by sound are not the only threats that lurk beyond the sand path.