Tag definitions:
- set_in_nocturnal_city: Film unfolds substantially or entirely during a single anxious night in a city; urban darkness, after-hours world. (After Hours, Collateral, Good Time, Nightcrawler)

Films:
1. The Lineup (1958)
2. Across 110th Street (1972)
3. City of Fear (1959)
4. Mystery Train (1989)
5. The Brother from Another Planet (1984)
6. Metropolitan (1990)

Judge each film from your internal knowledge only, no web searches. Read the whole definition, then decide whether it describes the film. The tag applies only if the definition holds as a whole, not just parts. Give one sentence of reasoning per film, then the verdict line. If the tag describes a plot engine in the heart of the film, read the definition as describing how a first view audience perceives the situation while watching the heart of the film; for instance, do not disqualify The Usual Suspects as being a ragtag_band simply because at the end we learn this is a made up story. Example lists are illustrative, not required clauses. Do not invent additional requirements beyond the definition. Co-occurring tags are fine. The verdict line: the film's number from the list above, a colon, then the comma-separated tag slugs that apply, or the word none — for example `3: outsider_goes_native` or `7: none`. The verdict line must contain nothing but the number, the colon, and the slugs (or none).