Hoping to fix their dysfunctional marriage, a couple travels to an isolated mountain cabin to work out their problems - but the one problem they didn't anticipate is the maniac trying to kill them.
The known world is over, only its ashes remain. In a desperate attempt to reunite their family, Ana and her mother embark on a dangerous journey in which they will face the creatures that dominate the planet and an even more dangerous monster: the one all humans carry inside.
