If you loved Guilty as Sin, try Night Falls on Manhattan
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 Drama / Thriller territory. If that's the register that drew you to Guilty as Sin, the second film will land in a comparable space — through a different lens.
paranoid
What Night Falls on Manhattan is
Morning fog over the East River. A gold badge gleams at a press conference. A reformist DA steps between two veterans of the precinct: one his father, one his longtime friend, both suddenly suspects. Sidney Lumet tightens the screws like a judge counting to ten.

