Traditional investigation methods often reach their limits due to time pressure, lack of resources, or operational blindness. The author analyzes these weaknesses and emphasizes the importance of a fresh outside perspective.

As a pioneer of profiling in German-speaking countries, Petermann presents this method as an effective tool for solving complex crimes, detailing the steps from crime scene analysis to creating perpetrator profiles.

The book serves as a plea for victims and their families who often wait years for closure and justice, emphasizing that every life matters and unsolved cases should not be forgotten.