‘Theatre on a long thin wire’ involves nothing but a chair, a CD player and a mysterious voice through a phone. Total audience participation is expected as individuals take it in turn to answer the phone and echo the voice on the line. Set in a loft covered in gas taps and pipes, it initially evokes the feeling that we’ve been transported to the scene of a horror film, then, as things progress, it starts to feel like a potentially dodgy psychological experiment as we willingly follow the instructions of a disembodied voice. This is hardly high octane excitement, but even the most cynical of participants will start to feel involved in the subtly built up, if predictable, drama.

Summerhall, until 24 Aug.
tw rating 3/5 | [Charlotte Taylor]