This English-language French production, directed by Rene Clement is a psychological/spy thriller, and features an excellent score by Gilbert Becaud. Faye Dunaway is Jill, the wife of a former industrial spy (played by Frank Langella). Her husband's employers are not perfectly reconciled to his retirement, however, even though he is firm in his refusal to rejoin them. As the film proceeds, we discover that Jill is a nervous sort, and the spymasters seek by various means to take advantage of her nervous temperament in order to induce her husband to work for them again.
by Clarke Fountain synopsis