Its not Yellow Brick Road or Stephen King, its a poor man's The Sphere.

This movie is basically the sphere, the only difference is that in the Sphere its people's fears that are mainfested and themselves to self destruct, here its the same thing except its their emotions/trauma. But its pretty much the same plot, group of people find an "alien" object in a remote area which manipulates them to self destruct. I believe, Sphere was the better version.