Both are written by the same author. Male lead’s character is very complex as he is involved in the downfall of her family (but not as dramatic as GBMP) and the drama is also very political. But it’s unique and the actors makes it astonishingly enjoyable. The story in SIF is not in chronological order so the beginning may be a little confusing to some audiences and uses flashbacks instead as it jumps 2 years later into their marriage while GMP’s events goes in it’s chronological order. But both leads carries hatred and vengefulness.
But don’t forget, the author is known as the step-mother of her novels and yes this is also a tragedy. Both are a bittersweet melodrama with great OSTs that compliments the angsty and tragedy of it.