It’s Christmas Eve in snowy New York City and private investigator William Baget and his friend Freddie Lewis have been invited to dinner at Arthur J. Vincent's speakeasy establishment, The Golden Cap.

The festive night takes a murderous turn when Arthur J. Vincent drops dead in his study.

And after discovering they are trapped inside, it is up to William Baget to determine which of his fellow guests is the killer.

But can Baget unravel the case when he learns all his suspects have a motive?