Answer:
The Owens are a set of fictitious and mysterious couples. The mysterious Owens were motivated to invite the ten guests as way of punishing those whose crimes are not punishable under law.
At the end of the story, we discovered that the mysterious Owens were connected to one of the guests called Judge Wargrave who planned the murders.
The guests were charged for murder. The gramophone recording spoke. The excerpt below reveal to us why the ten guests were invited:
"There was a silence—a comfortable replete silence into that silence came the voice. Without warning, inhuman, penetrating . . . “Ladies and gentlemen! Silence, please! . . . You are charged with the following indictments.”
Another evidence below revealed that Judge Wargrave was behind the murders.
"From an early age I knew very strongly the lust to kill. But side by side with this went a contradictory trait-a strong sense of justice." said Mr. Justice Wargrave.
Step-by-step explanation:
"And Then There Were None" was a suspense-filled story by Agatha Christie. It's a story about ten guests who were invited by Mr. and Mrs. Owen - fictitious couples. The ten guests were murdered in the Indian Island.