Ten days before Christmas, wealthy James Wentworth feels not joy but grief. His reckless son, Lucien, has been lured into a deadly world of drugs and wild passion. Wentworth's only hope, he believes, is his old friend Henry Rathbone, who volunteers to search for the prodigal son. Rathbone knows nothing of the sensation-obsessed underworld where Lucien now dwells, but he acquires two unexpected companions who do.