Real life: Wonderland: Mad Cats And Englishwomen
Remarkable cat lovers feature in tonight's Wonderland, the series which seeks out people and places that offer a glimpse of Britain usually hidden from view.
In London there are more than a million cats, half of them strays. Former model Celia Hammond (left) has been rescuing cats for the past 40 years and runs a clinic in east London to treat and neuter animals. The crisis, however, is spiralling out of control. "I've never felt so helpless, " she says.