A Bona Fide Killer S1E9 — Episode 9
8.1

Episode 9

8.1/10 · 31 votesAug 28, 202666 min

Ranked #12 of 14 in Season 1•−0.3 vs season avg

Discussion

Sergei, Bo-na's childhood friend and a mercenary from Russia, reappears, and the truth of The Gosiwon Case in Haegong-dong from four years ago begins to surface. Bo-na investigates Sergei's return to Korea. Meanwhile, Dong-jin learns that Jang Eun-hak, the culprit who murdered his parents, has

Seasons1

Season 1 Episodes14

Cast11

Gong Hyo-jin

Gong Hyo-jin

Yoo Bo-na

Jung Jun-won

Jung Jun-won

Kwon Tae-sung

Lee Sang-yi

Lee Sang-yi

Lee Dong-jin

Sung Dong-il

Sung Dong-il

Kim Bong-pal

Moo Jin-sung

Moo Jin-sung

Gi Yeong-do

Lee Eun-saem

Lee Eun-saem

Kwon Se-ah

Kim Nam-hee

Kim Nam-hee

Bong Tae-min

Ha Yully

Ha Yully

Oh Hyun-nam

Choi Woo-sung

Choi Woo-sung

Beom Seong-hoon

Shin Hyun-soo

Shin Hyun-soo

Seul-gi / Sergei Volansky

Lee Chan-yang

Lee Chan-yang

Kim Min-jae

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Episode Summary

"Episode 9" is episode 9 of A Bona Fide Killer season 1. It scored 8.1/10 from 31 votes, ranking #12 of 14 episodes this season (season average 8.4). It aired on August 28, 2026.