Mystery Case Files: Prime Suspects immerses players in a fascinating investigation into one of the most insidious crimes in the history of mankind. The project is a continuation, and differs from its predecessor in the increased volume of content. There is panic on the streets of the city; an unknown villain has stolen Queen Hope's diamond. The diamond was the pride of the royal court and the most valuable item in the collection. He clearly acted like a professional, because there were no traces left, but not every petty thief can dare to do this. The police are powerless, so the authorities turn to the main character for help, because only he can find the relic.

The gameplay consists of passing levels one by one, which will gradually lead to a solution. Each task is a location, which is strewn with different objects. The detective needs to look through all the rubbish and find important evidence. Until all the clues are found, the next level simply will not open. In addition to searching for various items, the protagonist will have to meet other characters. During a dialogue, you should pay attention to what is said, as well as the behavior of the interlocutor, because it may contain an important clue. Gamers will need to use their wits and show maximum concentration. The project will definitely appeal to fans of classic detective stories.