Alistair Sim is the stand-out in this rather claustrophobic adaptation of a slight stage play. Mr Sim is commendably restrained, more so than in some other Launder & Gilliat comedies, but he has so little to do, and so little happens that nowadays, one wonders why the whole thing was mounted anyway. The relationship between the aspirational secretary and her 'dumb' boyfriend is nicely constructed, and he, Peter Martyn, plays his part very nicely. Otherwise all the focus is on the more upper-middle class characters, who nowadays seem like caricatures. There was a tendency in most British cinema of the 50s to adapt stage plays, but very non-cinematically; this is a typical example. In terms of film study or of entertainment, this doesn't have a lot more than competence to commend it.