Break a leg is supposed to be just an expression. It's Halloween, and Rosemary and her friend are headed to a castle in the country to watch someone be murdered! It's all in good fun, of course; Vera's theatre troupe is putting on a murder mystery weekend complete with clues, red herrings, and a slew of dramatic performances. For once, Rosemary and Max will have to work together to solve the case-but will their budding relationship survive a homicide at Halloween?