Max and Alan are goofing around their flat, sorting laundry, making tea, and watching highlights of the Gulf War on telly. Max is passing his time less than fruitfully as he seethes over the breakdown of a relationship, while Alan is primarily concerned with keeping his teddy bears in order.
When their old mate Tadge enters. Tadge has been to war, but has escaped. A shadowy gang molested him, he says. His father's not his real father, he says. And he doesn't like being called Tadge.
Tadge's paranoia, and conviction that Alan is one of the 'penetrators' from whom he fled, leads him to threaten and frighten Alan and Max, fracturing their friendship, and doing unspeakable things to the teddies.
Penetrator was first performed at the Traverse Theatre, Edinburgh in 1993, before transferring to the Finborough Theatre, London later that year, and subsequently the Royal Court Theatre Upstairs in 1994.