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. 
First, they must not have an alibi
الأوّل، يجب عدم امتلاكه لحجّة غياب
Erstens: Personen, die zum Tatzeitpunkt
zwischen 0:30 Uhr und 1 Uhr kein Alibi haben.
La primera: no tiene coartada
La primera: no tiene coartada
Un. La véritable heure du crime.
Prima, una persona senza un alibi
Primeira, alguém sem
álibi no período real,