Confusions by Alan Ayckbourn

Lucy spends so much time at home with the kids, that she's started to treat everyone - even the next-door neighbours - like children. Her errant salesman husband, Harry, is miles away in an hotel and has other things on his mind - namely, the charms of Paula and Bernice.

Their waiter also has other concerns - the rapidly deteriorating relationships of diners Polly and Martin and
Mr and Mrs Pearce, for instance.
Mrs Pearce is invited to open a village fete - but can't possibly have any inkling of the mayhem which is about to ensue. Finally, five people meet on four park benches and converse.