Watch if you're into: Historic disappearances, cold cases, or Nicola Walker and the authentic, no-nonsense characters she typically plays. Unforgotten follows detectives Cassie Stuart (played by Walker) and Sunil "Sunny" Khan as they unravel cases from the past.
How many seasons? Three, with series four set to land on our screens this year!
Where to watch: Watch Unforgotten on Netflix.
Image Source: BBC