It’s Christmas in Canada, and Charles and Amelia Humble are enjoying a long-overdue visit with family.Apple pie, candy cane brownies, and snowball fights are all on the agenda this winter vacation. But when a young woman rushes into the snowy streets crying, “Murder! Murder!”, Amelia insists that solving this locked room mystery, of the local miser’s slaying, be added to the Humbles’ list of holiday festivities.