LUXEN
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LUXEN TV Series
Unforgotten
2015·6 Seasons·36 Episodes·★ 7.6
London police detectives Cassie Stuart and Sunny Khan investigate historic cold cases involving missing persons, murder and long-hidden secrets.
LUXEN Decision Guide
Does this fit your time and taste?
A tension-led series where questions, pressure, investigation, or shifting trust can keep the story moving from episode to episode.
Best fit
Who it is for
Best suited to viewers who want an ongoing hook and a reason to keep watching the next episode.
Commitment
Long-form commitment · 6 seasons
Use the season and episode count to judge how much time you want to invest.
Start here
Read the synopsis.
Start with the trailer and first-season premise, then decide whether you want to invest in the longer arc.
The series
Seasons
Season 1
6 episodes
2015
Season 2
6 episodes
2017
Season 3
6 episodes
2018
Season 4
6 episodes
2021
Season 5
6 episodes
2023
Season 6
6 episodes
2025
Cast
Who's in it
Tap a cast member to discover more of their work.