In relationships with women Дон Тиллман is a young successful scientist-geneticist - never moved up farther than the first appointment. Considering this method of search of the "half" uneffective, Дон decides to apply scientific approach. His project "Wife" is begun with the most detailed 30-paginal questionnaire called to sift from all unsuitable and educe one - ideal. She quite exactly will not be smoking, unpunctual, sporting by a fan.But Рози Джармен smokes, is late, is ill after "Янкиз" and besides - at horror! - works in a bar. And she is beautiful yet, clever, temperamental and led away by an own project - searches the biological father. When Дон consents to help her, a project "Wife" yields to a place the project "Father", and then unnoticed for it grows into a project "Рози". In the process of prosecution of him Дон knows that love it is impossible neither to calculate nor to find - even "on science". Ljubov finds you.