As with many other Ray Cooney plays, it features a lead actor (in this case a junior UK minister) who has to lie his way out of an embarrassing situation (in this case a planned adultery with a secretary) with the help of an innocent side-kick (in this case the minister's personal private secretary), who gets more and more embroiled in the increasingly tangled tale improvised by the lead character as events unfold. The action takes place in a suite in a posh London hotel and revolves around accidents caused by a defective sash window.