This chiller takes a simple premise – a malevolent ghost is only visible in the dark – and effectively cranks up the suspense as Teresa Palmer tries to keep her young half-brother (Gabriel Bateman) safe.
This means she needs some reliable light sources to hand so brace yourself for some frantic sequences in which a wind-up torch, candles, a mobile phone and even a tattoo parlour’s neon sign get pressed into service.
Once or twice, the film’s pace slackens for a batch of clumsy exposition, filling us in on the scarily clingy ghost’s back-story.
However, for the most part, Swedish director David F Sandberg, adapting and expanding his 2013 short film, keeps us jumping as the lights go on and off.
The film premieres on 3 June.