Miguel Aguirrezabala and Ramón Fontecha are two employees of a bank in which a sophisticated computer system has just been installed. Neither short nor lazy, they decide to use it to improve their history of sexual conquests. To start, they rent an apartment, where they hope to consummate their plans. Their modus operandi is as follows: they introduce a series of variables related to the life of the target girl into the computer, and he returns one of three possibilities in response: yes, no or maybe. If affirmative or probable, they proceed to invent a story that attracts the said lady to the apartment. But things are not as easy as they seem .