 A murder mystery game is a form of live-action "whodunit" experience, where guests at a private party are given notes to perform the roles of the suspects, detective and murderer over the course of an evening.There are a number of murder mystery dinner theaters, where either professional or community theatre performers take on those roles, and present the murder mystery to an audience, usually in conjunction with a meal.Typically before or immediately following the final course, the audience is given a chance to offer their help in solving the mystery.