Shido is a vampire detective who doesn't remember why he's a vampire, solving cases that blur the line between noir investigation and occult horror while his maker hunts him. The show treats its premise like a guy who just wants to do his job, except his job involves demons and his past is literally walking toward him. Comedy undercuts the dread at exactly the right moments. It's 1998, this thing predates the vampire detective saturation by years, which means it gets to play the bits straight before anyone tired them out. By the final episode you understand why Shido keeps working cases instead of running.
Shido Tatsuhiko solves crimes for a living, but he's not your average detective. A vampire with a fractured past, he operates in Tokyo's shadows, taking cases most won't touch. His world expands when Yayoi Matsunaga, a sharp government agent, crashes into his life with a job offer. They're hunting Nightbreed, demonic creatures that feed on human darkness and leave destruction in their wake. Riho, a street orphan with nowhere else to go, becomes Shido's unlikely assistant, and Guni, a peculiar green imp with his own agenda, rounds out this strange team. What should be straightforward monster-hunting quickly gets complicated. Shido's missing memories begin surfacing at inconvenient moments, hinting at a dangerous connection to his supernatural bloodline. Worse, Cain, the vampire responsible for Shido's transformation, is searching for him with unclear intentions. Between unraveling case mysteries, managing his team's chaos, and confronting his own cursed origin, Shido must decide what he's willing to sacrifice to protect those around him. Mystery and dark comedy collide as he chases answers through nights that refuse to end.