Motive X

Fabian Risk decides to temporarily step away from work to spend time with his family, who are going through difficult times. However, he is still haunted by the mysterious suicide of his colleague, Hugo Elvin; the inspector is convinced that his friend was conducting an investigation that touched upon the interests of high-ranking police officials.
Meanwhile, Helsingborg is rocked by a wave of brutal attacks on refugee neighborhoods, and it seems that the whole country is afflicted by a virus of intolerance. Public sentiment is frightening in its volatility, and Fabian is forced to return to service and commence an investigation.
But as the case progresses, it becomes increasingly clear that the real danger lies elsewhere. The main vendetta of Fabian Risk against a criminal, whose methods astound with their sophistication, is approaching, and the motives are unknown.