Money changes over time, old coins become rare and start costing much higher than their nominal value. Numismatists, so called coin collectors, often for years can hunt for a single coin, which is worth a fortune. Recently, a fairly well-known collector was robbed, taking several valuable copies. The police launched an investigation that led to the owner of a local factory. He was suspected, but there was no evidence and then three companies undercover decided to introduce his company: Jane, Diana and Gabriel. They must secretly search the factory and find evidence that will expose the perpetrator.
