It's December in Tennant Park, Colorado, and that can only mean one thing: The annual production of “A Christmas Carol” is just around the corner. The cast is abuzz, full of community-theatre veterans and fresh-faced newcomers. All in this small mountain town is merry and bright...

Until Teena, one of the actors, makes a chilling discovery on opening night: Someone is going to murder Scrooge—or, rather, the actor playing Scrooge—right on stage, in front of the entire audience. Everyone in the cast is a suspect. Can Teena crack the case, save Scrooge, and figure out whogonnadoit... all while remembering her lines?