A young woman called Lina Verde is searching the craggy, steep cliffs of Capri for a rare orchid. Soon afterwards, Zeno the fisherman finds her lifeless body. He claims that he and Lina were a couple, but he doesn’t even know her address. Did he kill her? Zeno is a notorious liar who presents himself as a sociable Capri fisherman, at least to female tourists. The island police officers Enrico Rizzi and Antonia Cirillo believe him to be capable of anything, but a perfumer leads them onto a new trail. Was Lina really just looking for a flower?