The Key: Murder at the Oakdale Club

From the Publisher:

A dramatic series of murders has shocked the Oakdale Golf Club – three people were killed! The players start their investigations and examine clues about the perpetrators, times of the crimes, murder weapons, crime scenes and getaway vehicles. They need to generate the right number code to put the perpetrators behind bars. In the end, it’s not necessarily the fastest investigator who wins the game, but the most efficient one.