What if...

A grieving man receives a mysterious, personal invitation to meet with God at a place called 'The Shack'.

The spirit of a recently deceased expert pilot mentors a newer pilot while watching him fall in love with the girlfriend that he left behind.

The year is 1955, and a great flood is coming to Northfork, Montana. A new hydroelectric dam is about to be installed in the mountains above the town, ready to submerge the valley in the name of progress. It is the responsibility of a six-man Evacuation Committee to relocate the townsfolk to higher ground. Most have duly departed, but a few stubborn stragglers remain – among them a priest caring for a sickly orphan, a boy whose fevered visions are leading him to believe he is a member of a roaming band of lost angels desperately searching for a way home.

Recently deceased, a white-sheeted ghost returns to his suburban home to console his bereft wife, only to find that in his spectral state he has become unstuck in time, forced to watch passively as the life he knew and the woman he loves slowly slip away.