Greg finds a strange pair of slippers under the bed and is too besotted to believe they might have been left by another man (which would also explain the bunches of flowers and boxes of sweets filling Ginny's apartment).
Although it is basically a comedy of misunderstandings and mistaken identity, as plays of this genre go it has a very well-constructed plot, plus some developed characters and a slightly dark streak.
It has since been staged a few times by professional and amateur companies, and in 2013 a revival ran for three months at Wyndham's Theatre in London, starring Felicity Kendal as Sheila.
The 40th-anniversary production was directed by Alan Ayckbourn at the Stephen Joseph Theatre in Scarborough in 2007, starring Philip York, Eileen Battye, Dominic Hecht and Katie Foster-Barnes.
The play has also been produced internationally, in Singapore, Kuala Lumpur, Sri Lanka, in May 2007, by the British Theatre Playhouse,[3] and in November 2018 in Belgrade, Serbia.