Feeling bored, Garfield looks into a closet and finds a trenchcoat and fedora (hat). Donning both, he begins to fantasize he is Sam Spade, a second-rate private investigator in a film noir atmosphere. Sam receives a visit from Tanya O'Tabby, a beautiful woman who hires Sam to investigate the death of her husband, Professor O'Tabby, who apparently drove off a clifftop road. Tanya believes it was murder, as her husband was an excellent driver, but the death was ruled as a simple car accident. Despite initially suspecting foul play, Sam agrees to take the case.