To Make Things Clear

Ginny and Greg, a couple who have been living together for a very short time, independently meet at the house of married couple Sheila and Filip.

If Sheila hadn't provoked so much, if Ginny hadn't written that cursed address on a cigarette box, if Greg hadn't found those slippers under the bed, and if Filip had found his hoe, everything would have been fine. But instead, these four will experience a hot summer afternoon they won't soon forget.

The play is by Alan Ayckbourn, a renowned British dramatist, whose other well-known title is How the Other Half Loves (also known in Czech as "Kdes to byl/a v noci?"). The original title of the play is Relatively Speaking.