Korean Drama '' The Impossible Heir '' is a melodrama about the relationship between two young men.

On paper, the storyline sounds fantastic, however, the first part of the drama is quite a let down. The drama actually takes a bit to settle down and find its way. With the family drama being lukewarm and the weak romance trying to take the main place in the plot, the series was quite boring for that part.

The second part, on the other hand, was quite intense and enjoyable. With the main lead taking a turn and embracing his dark side, the thriller got better and more action scenes were added.

Finally, the performances varied from good to wooden.

So, overall, five out of ten.