If you're a fan of dialogue-driven, single-setting shows, this series is perfect for you. It revolves entirely around suspect interrogations and dynamics between detectives, which lead to 3 "storylines" per episode: (1) whether the suspect is guilty or not, (2) the characterization of the suspects, and, (3) the characterization of the detectives. The third storyline might be necessary to push the series up an extra notch, but it's easily the least interesting part of the series. The show creates tension layer by layer, and it has a way of keeping its premise fresh each time; I'm not sure that this is a format you want to binge. But it's also 3-4 episodes a season, so you might as well?
Synopsis
Within the walls of an interrogation room, London investigators question suspects accused of grievous crimes until the truth comes to light.
Storyline
Suspects plead their innocence to a team of detectives of various personalities.
TLDR
It's Black Mirror with dialogue as the technology.
What stands out
It's really the right number of episodes and the right length of episode for its concept.