Charlie Nickels has a hard life as a gumshoe in the seedy underbelly of Los Angeles, and things are only made harder by the murder of a client and the theft of her 300 karat diamond. With the help of his wise-cracking secretary, Ida, Charlie seeks out the many suspects: smarmy bookworm Clive, equestrian beauty Veronica, snooty butler Wilson, sensitive muscle Louie, and mob boss Bugsy Siegel. At the center of the case is femme fatale Mona, a nightclub...