The reviewer is correct
The review on the main page is spot on (I've made a couple of minor edits):
Businessman (Niven) and his wife (Caron) are caught in the turmoil of a South American revolution, find themselves helping the overthrown president escape to the border. Civilized drama (as Niven tries to find life's meaning) gets itself tangled in deeper meanings, never quite makes itself clear. Cast tries hard, but the result is no better than fair.
A person's a person, no matter how small. -- Dr. Seuss share