"Unforgotten" is a British crime drama television series that first premiered in 2015. The show follows detectives Cassie Stuart and Sunny Khan as they investigate cold cases involving long-buried secrets and unresolved crimes. Each season typically focuses on a single case, exploring the impact of the crime on the victims' families and the community. The series is known for its thoughtful storytelling and character development, delving into the lives of both the victims and the suspects. It highlights themes of memory, loss, and the quest for justice, making it a compelling watch for fans of the genre.