But is it wrong to be an armchair detective? Baby Reindeer has inspired amateur sleuths to unmask the real-life inspiration for its villain. Some worry that this might hurt the vulnerable.
Low budget true story becomes TV smash hit
Whodunit?: Baby Reindeer, starring comedian Richard Gadd (above) follows struggling comic Donny Dunn. Glossary
Fanfare - A short tune played on brass instruments, or lots of media attention.
Netflix - A television and film streaming service. People pay each month to watch programmes on Netflix.
Emmy - The Emmy Awards are television industry awards.
Amateur - Not professional.
Sleuthing - Looking for answers or clues.
Conspiracy theories - Theories that explain world events by blaming shady groups of powerful people operating in secret. Some conspiracy theories have a basis in fact, but many more of them are completely invented. What is more, they often play on dangerous prejudices such as antisemitism. It's worth being especially cautious and critical when you come across accounts that ascribe enormous agency to small and secretive groups.
Jack the Ripper - A serial killer in Victorian London who savagely murdered at least five women. The case intrigued the press and it received a great deal of coverage.