Peter and Maria, a newly-married American couple come to a small Swiss village to hire Glooker, a famous mountain guide, to take them up the east wall of Pitz-Palu, one of the highest peaks in the Alps. They meet Dr. Jensen, a fellow American, whose wife fell to her death on a Pitz-Palu climb twenty years ago to the day. Jensen returns each year on the date of her death in the ...