A Damsel in Distress by P. G. Wodehouse

An American composer, George Bevan, falls in love with a mysterious young lady who takes refuge in his taxicab one day. He tracks her down to an English country manor, where a case of mistaken identity leads to all manner of comedy and excitement.The novel was first serialized in The Saturday Evening Post in 1919. It was later adapted into a silent film, a stage play, and a musical starring Fred Astaire.