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. 
the fact that the murderer seemed 
to know the layout of the mansion.
إلمام الجاني بتخطيط القصر الداخليّ
le meurtrier connaissait
parfaitement les lieux.
o assassino parece conhecer
a parte interna da mansão.
почему убийца так хорошо
ориентируется в замке?