When a young man, Zack, is found dead at a rave club, Dalziel and Pascoe are under pressure to find out who was the dealer of the drugs that killed him. When the drugs themselves turn out to have been laced with poison, Dalziel and Pascoe start to scrutinize Zack's social circle as they search for possible suspects. Is it blackmail, drugs or just plain old sexual jealousy that holds the key to Zack's death?