Scent of Mystery (1960)
Oliver Larker: [narrating] I haven't been away from my flat in 9 years, and 6 mysteries. But, I suppose the creator of a private eye has to get out in public every so often. And I hate to travel - unless it's in the Commonwealth. Otherwise you meet so many foreigners, who don't even speak English. And all those beastly tourists - mostly Americans. They don't speak English either.