Guests assemble at Hamlet Hall for a New Year's Eve party to remember. They are to take part in a murder mystery game with a 1920s twist, and everyone has their own part to play. But the evening has barely begun when one guest is found dead - killed by an injury to the head. Someone is playing by their own rules. And in a close-knit community, old rivalries run deep.
One house. Nine guests. Endless motives for murder...