You probably know Jack Arnold better from directing movies like It Came from Outer Space,  Creature from the Black Lagoon, Tarantula and The Incredible Shrinking Man than spy thrillers. In this movie, a Swiss bank has its infamous secret bank accounts get compromised. They get David Christopher (David Janssen), a former U.S. Treasury official who now resides in Geneva to help.

He meets with the four people being blackmailed — one has already been killed — who include Denise Abbott (Senta Berger), Dwight McGowan (John Ireland), Robert Hayes (John Saxon) and Andre Kosta (Arthur Brauss). Who could be blackmailing them? Well, it could be any of the following people: bank vice-president, Franz Benninger (Anton Diffring), his mistress Rita Jensen (Elke Sommer) or two criminals, Korsak (Curt Lowens) and Sando (David Hess). Whoever the blackmailer is, they demand uncut diamonds as their payoff. Christopher has to head into the Andes, all alone, prepared to face off with whoever the blackmailer or blackmailers may be.

Hey it’s 89 minutes long and moves quick. It’s not the worst movie you’ve seen.

Don’t have the box set? You can watch this on YouTube.