Antonio and Elisa, a newly married couple, head to the Costa Brava to spend their honeymoon. Antonio, who is a crime reporter, is obsessed with the idea of solving a major crime. His wish comes true when the couple reaches their destination: a jeweler from Barcelona, staying in the same hotel as them, is murdered. Elisa, eager for her husband to pay attention to her, will try to find out on her own who is the culprit.