“... Heading towards the house with a fragrant bouquet, Alix noticed a small dark green object sticking out between the leaves. Bending down and picking it up, she recognized her husband’s notebook. Alix opened the booklet, looking at the notes with interest. From the very beginning of their marriage, she realized that the impulsive and emotional Gerald had virtues uncharacteristic for such people: accuracy and method. He always demanded that food be served on time and planned his day with the precision of a railway timetable. On the slip marked that day was written in Gerald's neat and clear handwriting: “21.00.” And nothing more. What did Gerald have planned for nine o'clock in the evening? ..."