Barry Newman is "Bill", a lawyer for a publishing company who travels to Salzburg to talk to a photographer who is working on a book about the local lakes. When he stops by the man's studio, he discovers from his wife "Anna" (Anna Karina) that the man has recently died - and that she and "Johann" (Klaus Maria Brandauer) suspect foul play. When Brandauer discovers a metal box in the water, he secretes it away in a remote house; hopefully safe from those who will stop at nothing to obtain it's contents. What now follows is a series of perilous escapades as Newman tries to stay alive long enough to get to the bottom of this mystery. This film might have been better had the star had a bit more of a presence, but as it is he is little better than a jobbing television actor who brings little gravitas or style to the role. Brandauer isn't much better, with a supporting cast of mediocre acting talent that rather drags this post-war thriller into the doldrums and leaves it there.