Looking at the data behind the world’s biggest unsolved crimes, we count down the top eight most captivating cases, based on search volume, starting with The Keddie Murders. But what are we searching for around each case and which one has captured the most attention?
True Crime Mania uses ahrefs and Google Trend search data to analyse the popularity of the biggest true crime documentaries - as decided by IMDb and Netflix lists - across 50 major countries, revealing which are worth watching for those looking to learn more about the world's favourite mysteries.
Each country is ranked by their cumulative searches for the selected documentaries to show their rates of interest, and show which individual documentaries are most popular in each country, what their ratings are according to IMDb, and which separate Netflix or IMDb show has been the biggest hit overall.
True Crime Mania also looks at the biggest and most popular unresolved high profile crimes, any related documentaries, patterns in search trends and possible reasons for sudden spikes in interest in each case to show how and why people are so fascinated by true crime documentaries.