This farce concerns the culprit in Lady Godard's murder. A certain detective makes it clear that Lady Godard was murdered by a member of her own family, despite their protests. Regrettably, the services of the detective's bodyguard are required. 
A birdcage?
قفص طير؟
Vogelkäfig?
Une cage à oiseau ?
Una gabbietta?
Uma gaiola?
С птичьей клеткой?