If you loved Detective Conan: The Scarlet Alibi, try Detective Conan: Love Story at Police Headquarters ~Wedding Eve~
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.
You already loved

Detective Conan: The Scarlet Alibi
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Detective Conan: Love Story at Police Headquarters ~Wedding Eve~
What they share
Both films are directed by Shunsuke Ishihara, and they sit in Animation / Drama territory. If that's the register that drew you to Detective Conan: The Scarlet Alibi, the second film will land in a comparable space — through a different lens.
What Detective Conan: Love Story at Police Headquarters ~Wedding Eve~ is
You start as a rookie detective paired with a senior partner on stakeout nights. Then late reports of stolen evidence rewrite the night. The series lingers on glances exchanged between calls, a director’s trick that made 2000s anime feel lived in.