When blonde bombshell Meredith Lake breezes into his office, New York private eye Bob Signorelli can’t resist giving her “personal” attention. But their one-night stand becomes a deadly liaison when they are linked to a homicide; and a night of steamy passion snowballs into a marathon of madness and murder.

　　A group of people are killed one by one while participating at a million dollar treasure hunt in a mysterious Italian castle.