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 construction of an alibi—
...صنع حجّة غياب
Er brauchte ein Alibi.
El asesino tiene coartada.
El asesino tiene coartada.
Pour se créer un alibi.
L'ha fatto per crearsi un alibi.
O assassino agora tem um álibi.
Преступник сделал себе алиби.