Newly-promoted if none too happily married Howard Brubaker leaves a rowdy company party early with the stunning Catherine, whom it turns out is herself unhappily married — to the boss. They spend an innocent night in New York becoming more and more attracted to each other, so that when Catherine announces she intends to leave her husband and return to Paris Howard asks to go along too.
When an experimental flying saucer crashes, secret agent Matt Helm has to bring back the secret weapons hidden on board.
The handsome top agent Matt dies a tragic death in his bath tub - the women mourn about the loss. However it's just faked for his latest top-secret mission: He shall find Dr. Solaris, inventor of the Helium laser beam, powerful enough to destroy a whole continent. It seems Dr. Solaris has been kidnapped by a criminal organization. The trace leads to the Cote D'Azur.
