The group gets together at a Scottish castle and are divided into 2 groups, faithful and traitors (usually 3 of them). They do challenges for prize money, and eliminate one guest they think is a traitor each day. The traitors 'murder eliminate' one guest secretly each night. If there is even one traitor left at the end, they will get the prize money, otherwise the faithful split it. It's a typical reality show with lots of backstabbing and plotting. I thoroughly enjoy it! Usually some pretty strong personalities. Gets very sneaky.