Paula and Antonio planned an intimate dinner to celebrate their anniversary when Olga appears with the firm intention of "make more sweet" the evening. Meanwhile, Lucia dreams of being close to their favorite group, Blackstreet Boys, who announced his visit to the city to give a concert just for journalists from all over Spain.

Paula in nervous state because she has to submit her thesis on "cymex lectularius" or the so-called common bed bug for a doctorate in Biological Sciences.