"Knock at the Cabin" is another effective horror thriller from M. Night Shyamalan, balancing suspense and terror before an ending that over-explains it all.

The trailer for director M. Night Shyamalan's new film, "Knock at the Cabin," has been released. The film follows a family as they try to avert the apocalypse.

M. Night Shyamalan’s latest hybrid of drama, horror, and suspense is a turgid tangle of a story that offers very little of anything worthwhile in the various genres it contends to belong to.