Poison at 2:30 (1959)

The old Don Senén has squandered in sprees the inheritance of his niece Begoña rather than manage it. There is still a million pesetas, which will only be delivered after the death of Don Senén. To get it, the old man, in complicity with Begoña and two other nephews (Ramón and Marcos) will fake his death. But Ramón and Marcos really planned to poison their uncle putting cyanide in his milk to keep them with money - When poor Quintín, Justo and Paloma (funeral parlor's workers) arise at Don Senén's home they will find an overview full of misunderstandings.