As a dense yellow fog swirls through the streets of London, a deep melancholy has descended on Sherlock Holmes, who sits in a cocaine induced haze at 22 1 B Baker Street. His mood is only lifted by a visit from beautiful bus distressed. For years later she began to receive an exquisite gift every year: a large lustrous pearl. Now she has had an intriguing invitation to meet her unknow benefactor and urges Holmes and Watson to accompany her. And in the ensuing investigation which involves a wronged woman, a stolen hoard of Indian treasure, a wooden-legged ruffian, a helpful dog and love affair even the jaded Holmes is moved to exclaim, Isn`t it gorgeous!.