David Robert Mitchell's wonderfully lean horror makes its way onto the small screen having having scared us witless in the cinema. With the very simplest and pretty nastiest of premises - a supernatural creature is transmitted by sex and kills the person it is transmitted to unless they have sex in which case it moves on - this is horror making at it's meanest. Although the logic doesn't quite follow in a number of places, the actors are all game and Mitchell has seen enough good John Carpenter movies to know which bits to steal and how to use them well. Thoroughly enjoyable.
Available on Netflix.