I make a litterary example: if you read "Gone with the wind" and then rewrite it as a sci-fi story set on Mars, with the poor minority of green men as the slaves of the all powerful red men, it is still plagiarism and, indeed, doubly so, since the green and red men of Mars idea would itself be stolen from the works of E.R. Burroughs.
Правду человек говорит или нет?