I haven't read this specific Philip Marlowe novel yet. But Philip Marlowe novels are generally known for their noir detective stories. They often involve complex mysteries and a tough - as - nails detective, Marlowe, who has to dig through a web of lies and danger to solve the case.
Well, 'The Second Murderer: A Philip Marlowe Novel' might be full of the typical elements of a Marlowe story. There could be seedy characters, a shadowy underworld, and Marlowe using his wits and street smarts to figure out who the second murderer is. Maybe it's a story where the first murder seems clear, but as Marlowe investigates further, he discovers that there's another killer lurking in the shadows, and he has to untangle a whole new set of motives and alibis.
Since it's a Philip Marlowe novel, we can expect a certain style. The settings are likely to be the gritty streets and dim - lit alleys of a city. Marlowe is a character with a strong moral code in a world full of moral ambiguity. In 'The Second Murderer', perhaps Marlowe is hired to clear someone's name who has been wrongly accused of the first murder, only to find that there is a second murderer out there, and in his pursuit, he uncovers secrets that go far deeper than just the two murders, involving powerful and corrupt individuals who will stop at nothing to keep their secrets buried.