A strange but funny BBC Radio 4 'Afternoon Play' about sex, betrayal, the housing market and a love triangle that follows its own surreal logic. 'Cavity' was originally broadcast 29 January 2009, and repeated 24 March 2011.Kirsty is having an affair with a married man, Adrian. When his wife, Lucy, returns unexpectedly from a business conference, Kirsty hides in the attic. In a panic, she falls down the back of the attic into the cavity wall. A story then unfolds which combines the domestically mundane with the utterly bizarre.'Cavity' stars Ingrid Oliver as Kirsty, Julian Rhind-Tutt as Adrian and Kerry Godliman as Lucy. Also featuring amongst the cast are Hayley Doherty, Jim Howick, Paul Mundell and Deirdre Mullins.