Director Susanne Bier's post-apocalyptic horror film is based on Josh Malerman's 2014 novel of the same name. Sandra Bullock stars as a desperate mother of two children trying to survive in a world haunted by ghostly entities that assume the form of an individual's worst fears upon sight and prompt him or her to commit suicide. In an effort to seek refuge, she takes her children down a perilous river by boat – with all of them in blindfolds.