Irene Wagner, the wife of prominent scientist Albert Wagner, finds herself blackmailed about her affair by her lover's jealous ex-girlfriend. The plot, an experiment in causing fear, drives her into a rage.
Though unsaid, the movie takes place in Switzerland. The car license plates are marked "CH" for Confederation Helvetica.
My mind was in tumult. The gray fog and driving rain made the anguished hours I waited, even more desperate.