"Penthouse 3" episode 13 dropped another bombshell scene as Kim So Yeon, Park Eun Seok, Kim So Yeon, and more gears for the much-awaited season finale.

With only one episode left, the SBS drama gave the viewers shocking twists and turns with surprising updates with Cheon Seo Jin and Ha Yoon Chul played by 2021 Baeksang Arts Best Actress and Yoon Jong Hoon.

'Penthouse 3' Episode 13 Highlights: Logan Lee Saves Shim Su Ryeon

After the surprising death of Joo Dan Tae (Uhm Ki Joon,) Shim Su Ryeon appears to be in great shock after firing a gun at his head, causing him to fall out of the 10tth floor building.

She bids her farewell to Joo Seok Kyung (Han Ji Hyun) and Joo Seok Hoon (Kim Young Dae) as she holds their photos. Luckily she was found by Logan Lee (Park Eun Seok) and helped her escape the building before it collapsed.

READ MORE: 'Return' Star Park Ki Woong Reunites with 'Penthouse' Actor Bong Tae Kyu, Yoon Jong Hoon and Hera Palace Villain Uhm Ki Joon in New Variety Show

Cheon Seo Jin Celebrates Joo Dan Tae's Death

Another surprising revelation in "Penthouse 3" episode 13 is the former prima donna's condition.

It turns out that Cheon Seo Jin was only faking her dementia to escape getting into the trial.

Moreover, she used her daughter Ha Eun Byeol (Choi Ye Bin) to prove her mental disorder.

As for Eun Byeol, she felt guilty for putting her mother in such a miserable ordeal, so she chose to work odd jobs to support their family.

To recall, the previous episode showed that she put a drug that Ms. Jin gave her to Seo Jin's wine and thought that this would help her lose her memories, including her dark past.

Unfortunately, the Cheong Ah Arts director is only faking it and even celebrated upon learning that her nemesis, Joo Dan Tae, is dead.

The Accident Left Ha Yoon Chul in a Devastating Situation

"Penthouse 3" episode 13 featured Ha Yoon Chul's recovery after his scuffle with Seo Jin to save Bae Rona.

Although he managed to survive through surgery, the incident left the former neurosurgeon blind.

In one scene, he asked Logan Lee a favor, and that is to meet her daughter, Rona, who is about to leave Korea to study in one of the most prestigious schools in the world, Juilliard.

During a heart-to-heart talk with her, he pretends to be okay and apologizes to Rona for everything he has done.

Before his emotional conversation with Rona, he told Logan that he does not want to waste his remaining time at the hospital.

Ha Yoon Chul, Logan Lee, and Shim Su Ryeon Learned About Seo Jin's Secret

At the hospital, Yoon Chul used his connection to get information about Seo Jin's record. Here, he proved that his ex-wife was lying about her illness.

He immediately told this to Shim Su Ryeon and Logan Lee and planned to expose her wickedness regarding her connection with Ohh Yoon Hee's (Eugene) death.

However, before this, he wants to secure Ha Eun Byul's safety and convince her to live with him instead of her mom.

At their hideout, he thought that Seo Jin was her daughter and told her about his plan, which made his ex-wife furious.

Unfortunately, their intense conversation went violent, causing the former doctor to fall off the building.

Interestingly, during his last breath, he mistook his ex-wife as Yoon Hee and told him that he loved him and would never forget her, which crushed Seo Jin's heart.

Ha Eun Byeol Witnessed Cheon Seo Jin's Cruelty

After Yoon Chul's death, Logan and Su Ryeon wanted to save Eun Byeol from her mother, but she refused and insisted that Seo Jin is sick and needs her the most.

However, she told Su Ryeon that she would only believe them if she sees it for herself.

"Penthouse 3" episode 13 featured how the couple plotted another revenge against Seo Jin.

It came after Shim Su Ryeon made a threatening phone call saying, "Come to the place where you killed Yoon Hee. If you don't come within an hour, you'll never see Eun Byul again."

In just a snap, Seo Jin reached the area where Oh Yoon Hee died.

Here, Su Ryeon insisted that she killed Yoon Chul. Surprisingly, Seo Jin admitted her sins, not knowing that her daughter was watching them from afar.

Ha Eun Byul was shocked to hear her mother's confession, which left her no choice but to call the police and report Seo Jin directly.

Upon learning about this, Seo Jin even got furious towards Su Ryeon and pushed off the cliff, as she did with Yoon Hee.

"Penthouse 3" episode 13 suggests a shocking scene for the season finale, raising the curiosity about what kind of story will unfold in the season finale.

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Written by Geca Wills