Happening, The (2008) - Synopsis

From director M. Night Shyamalan (The Sixth Sense, Signs) comes a lightning-paced, heart-pounding paranoid thriller about a family on the run from an inexplicable and unstoppable event that threatens not only humankind . . . but the most basic human instinct of them all: survival.
It begins with no clear warning. It seems to come out of nowhere. In a matter of minutes, episodes of strange, chilling deaths that defy reason and boggle the mind in their shocking destructiveness, erupt in major American cities. What is causing this sudden, total breakdown of human behavior? Is it some kind of new terrorist attack, an experiment gone wrong, a diabolical toxic weapon, an out-of-control virus? Is it being transmitted by air, by water . . . how?