Thirty-five-year-old Laura Hindersten goes to the police to report that her father, a local professor, is missing. Inspector Ann Lindell and her colleagues can find no motive for the man's disappearance. And when the corpses of two elderly men do turn up, neither of the dead men is the missing academic. Unexpectedly, the police get help from one of the professor's colleagues, who believes there is an astonishing link between the murders and the disappearance of Professor Hindersten. But as the pressure on Lindell increases dramatically, she is shocked to discover that the killer has many more diabolical schemes in store.