Come As You Aren't

From publisher blurb: A simple investigation at a rich man's fancy costume party leads to a truly unique kind of chaos! Can your hunters survive this masquerade to end all masquerades or will they end up dying in a body not their own? NOTE: This mystery is best used as a fun, invigorating surprise for hunters in long term Monster of the Week campaigns and is not recommended for anyone's first Monster of the Week experience.