Alonso Crespo is a shy bachelor who works as a perfumer in a laboratory. Gunilla is a Danish hippy who has just settled temporarily together with her friends in the flat next to Alonso’s. These are very dirty and noisy people who are soon evicted by the police and imprisoned at the request of the neighborhood. Gunilla manages to escape and hides in Alonso’s apartment, which he surprises when he returns home from work. He asks him not to expose her and to keep her hidden in his house for a time, until his friends get out of prison, to which Alonso agrees. Days go by and the shy bachelor gradually loses his shyness, until he finally has sex with the Danish. One day Gunilla’s friends get out of jail and she goes with them to Ibiza - to appear nine months later in Alonso’s laboratory about to give birth to a son who undoubtedly belongs to both of them. What Alonso does not expect is that Gunilla intends to leave Alonso the baby as soon as he is born and then leave again.