- Fray an end.
One of my Hollywood friends recently told me of a simple, much-used movie trick to create a mood of suspense in an interior shot: Leave a cupboard door open. This visual cue suggests that things are unsettled, not composed, in need of attention.
On the page, little odd things that are not quite in order can create a subtle sense of tension in any scene. Think dangling apron strings, a guttering candle, a loose window latch, a jammed copy machine.