Mathison (Barry Newman) is an American in Austria investigating missing payments for a publisher, though really he is working for the CIA. After various people have gone missing, Mathison is drawn into a complicated and deadly plot involving lost Nazi secrets and competing secret service departments.
He is helped by the wife widow of one of the lost men, Anna (Anna Karina) whose annoying brother knows where the secrets are. Perky KGB agent Elissa (Karen Jensen) is also hunting for the plans...
The scenery, both in and out of town, is sumptuous so this film looks amazing, but what is it actually about. The story is very complicated, though packs a little too much in which makes things confusing. Things pick up a bit towards the end but to get there it can be a bit of a slog.