18 (Mostly) British Mysteries to Binge-Watch This Winter

Watch if you're into: Something gritter than Sherlock, sexual tension, and impressive acting. Ruth Wilson's wickedly delightful portrayal of possible psychopath Alice Morgan will give you chills. Also, if you don't have a crush on Idris Elba yet, you will after watching this series.

How many seasons? Three so far, with the fourth airing this month.

Where to watch: Watch Luther on Netflix.