The Penthouse | Episode 18
Director: Kim Soon-ok
Cast: Ahn Yeon-hong, Bong Tae-gyu, Choi Ye-bin, Eugene, Ha Do-kwon, Han Ji-hyun, Jin Ji-hee, Kim Do-Hyun, Kim Dong-Kyu, Kim Hyun-soo, Kim So-yeon, Kim Young-dae, Lee Ji-ah, Lee Tae-vin, On Ju-wan, Park Eun-seok, Park Ho-san, Shin Eun-kyung, Uhm Ki-joon, Yoon Jong-hoon, Yoon Joo-hee
Description: : Yoon Hee sees Dan Tae as a chance to elevate her daughter, Ro Na’s school life. Despite feeling some guilt about slowly growing distant from Su Ryeon, she partners with Dan Tae to also hide the fact that she’s the killer of Min Seol A. Meanwhile, Eun Byeol feels disgusted toward her mom after finding out about her affair with Mr. Joo.