If you loved Night Falls on Manhattan, try Prince of the City
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Sidney Lumet, and they both carry the paranoid mood tag, and they sit in Crime / Drama / Thriller territory. If that's the register that drew you to Night Falls on Manhattan, the second film will land in a comparable space — through a different lens.
paranoid
What Prince of the City is
Manhattan, late summer. A ringing phone. Detective Ciello makes a devil's bargain with the Feds, promising to expose dirty cops. Soon, a labyrinth of crooked deals and compromised loyalties ensnares him. Lumet's long, morally complex police procedural echoes classic Greek tragedy.

