What makes Demián Rugna’s film so effective is not the gore or the idea of a demonic contagion — it’s the way that the weaknesses of human nature, on both a personal and a systemic level, make stopping the corruption almost impossible once it appears.

When Evil Lurks is a shocking yet highly accomplished horror film, and Rugna’s name is one that demands to be up there with Cronenberg, Romero, Carpenter and Argento – this is a true master of the genre.

It’s breathlessly paced, sprints through a fleet 99 minutes and will give your nerves a big workout.

Let’s cut right to the chase: "When Evil Lurks" is one of our favorite horror films of all time, and easily in conversation for the best of this generation (so far).