In this episode, Pi-o finally reaches the breaking point. He learns that Jeong-yo has been pretending to have amnesia and that the truth must come out. But just as he thinks he can do that, it leads to another chapter of shame and guilt.
Four Hands, Two Sonatas Episode 10 has a runtime of 60 minutes. The series (포핸즈) stars Song Kang, Lee Jun-young, Jang Gyu-ri, Kim Joo-heon, Yoon Se-ah and Jung Jin-young and is directed by Park Hyeon-seok.

Four Hands, Two Sonatas Episode 10 Review
Pi-o Finally Sees Through Jeong-yo
Pi-o has figured out that Jeong-yo is acting. Not just Ji-hye but even Pi-o realises that something is suspicious about Jeong-yo. With familiar phrases, expressions and reactions of Jeong-yo, Pi-o realises that only someone who genuinely remembers everything would do such a pattern.
When Pi-o confronts him, Jeong-yo does not even deny it. He openly admits that he never forgot what happened and reveals that he did it all to ensure Pi-o confesses the truth. But you know what? I’m pissed at this point because, to save Ji-hye, Pi-o takes the blame for hiring a kidnapper. Yo!

This is easily one of the episode’s weakest choices because it feels like Pi-o is sacrificing himself for something he could totally reveal and yet change the fate. He could tell Jeong-yo about it and still prevent Ji-hye from ending her life. Come on!
Jeong-yo’s Revenge Through Music
Jeong-yo now firmly believes Pi-o is the reason, and his revenge begins. Pi-o agrees to perform Nemesis, but Jeong-yo pushes him relentlessly. He keeps correcting his timing and interpretation, and makes him play the piano constantly to the point that his fingers begin bleeding. Despite his plea to wash his blood, Jeong-yo forces him to keep playing.
What makes this especially painful is that everyone around them can see how extreme it has become, but Pi-o remains determined to prove himself. Jae-in intervenes and tries to stop Pi-o from hurting himself, but the weakest decision happens again. He instead breaks up with Jae-in. What even?

Their relationship has always felt like a source of comfort. Pi-o truly didn’t seem to love her but rather felt her warmth. Seeing him break up with her without any remorse confirms that he and she were not even trying to make things work.
The Revenge Finally Lands
Jeong-yo eventually fires Pi-o after pushing him to the point where he can barely play. That is when the cruelty of his plan becomes clear.
He did not simply want Pi-o to remember what happened. He wanted him to experience the same sense of betrayal that Jeong-yo has felt all these years. He makes him practise, bleed and eventually doesn’t acknowledge him. This shatters Pi-o’s soul. Jeong-yo has pushed Pi-o to these limits and made it seem like he is the problem for his weakness.
It is revenge disguised as artistic criticism.

Pi-o Finally Understands His Grandfather
Pi-o gets to talk with his grandfather, heart to heart. He has always believed that his grandpa never cared about his piano passion, but the truth is different. His grandpa has eventually realised that Pi-o is just like him: obsessed with perfection rather than passion.
That is why he pushed him so hard to ensure Pi-o loves to play the piano rather than to play it perfectly. When Pi-o says that he will choose to play the piano even if it means his end is coming, his grandpa tells him to follow his heart and play the piano rather than following the metronome and playing it technically.

Jeong-yo is demanding Pi-o to play it perfectly despite him being a guy who goes with his heart. Whereas the grandpa now truly reveals that he wants Pi-o to let his soul play the piano.
Finally…
Ji-hye is forced to confess the truth, but she lies and hesitates. However, the final confrontation happens, and she does. Pi-o returns to Jeong-yo and tells him that nobody else could play Nemesis as he can. More importantly, Pi-o tells Jeong-yo that he is aware that it is because of him that Jeong-yo wrote this piece. So the true nemesis of Jeong-yo should play the Nemesis piece.
That changes the meaning of everything Jeong-yo has been doing. The revenge is true, but their connection is far stronger than that.

With only two episodes left, Four Hands, Two Sonatas has reached the point where music, guilt, friendship and revenge are completely tangled together. The final question is no longer whether Pi-o and Jeong-yo can forgive each other, but whether they can survive everything they have done to one another.
Four Hands, Two Sonatas Episode 9 Review: Truth Bomb Drops
Four Hands, Two Sonatas Episode 11 Review (Coming Soon)

