Nick's Trip is a 1993 crime novel from author George Pelecanos.
His high-school friend Billy Goodrich asks him to search for his missing wife.
The title refers to Nick Stefanos' journeys in the novel both in his past (with Goodrich) and in the present on his investigation.
Nick Stefanos is now working as a bartender after being fired from his position with electrical goods chain "Nutty Nathan's".
[1] The novel is told from a first person perspective like many private investigator stories.