One episode to go, and MBC’s “A Bona Fide Killer” is going out on top. The hit miniseries has held firm at the top of its Friday time slot, setting the stage for what’s shaping up to be a satisfying finish for fans who’ve followed the series all the way through.
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Ratings Snapshot
According to Nielsen Korea, the drama’s penultimate episode climbed to an average nationwide rating of 9.6%, making it the most-watched miniseries to air on a Friday. Meanwhile, its same-slot competitor, SBS’s “Flex x Cop 2,” dipped to 6.4% for its latest episode — widening the gap heading into the final stretch.

A Bona Fide Killer: Overview
| Detail | Information |
|---|---|
| Drama | A Bona Fide Killer |
| Network | MBC |
| Latest Episode Rating | 9.6% (nationwide average) |
| Time Slot Rival | Flex x Cop 2 (SBS) – 6.4% |
| Ranking | Most-watched Friday miniseries |
| Finale Air Date | September 12, 2026, 9:40 PM KST |
Why It’s Winning the Ratings War
Steadily climbing ratings in the lead-up to a finale usually point to strong word-of-mouth and audience investment in the story’s resolution — and that’s exactly the momentum “A Bona Fide Killer” is riding into its last episode. Widening the gap against a direct competitor in the same slot is no small feat, especially in Korea’s competitive Friday drama lineup.
Catch Up Before the Finale
If you haven’t started the series yet, there’s still time to binge the earlier episodes before the finale airs. It’s exactly the kind of tightly plotted, high-stakes drama that rewards a quick catch-up session.
For more on how Nielsen ratings work and why they matter in the broadcasting industry, check out this Wikipedia overview of Nielsen ratings.
For more K-drama ratings updates, finale recaps, and TV news, head over to TechnoSports — your go-to hub for everything trending.
FAQs
Q1. When does the finale of “A Bona Fide Killer” air?
The final episode airs on September 12, 2026, at 9:40 PM KST on MBC.
Q2. How is “A Bona Fide Killer” performing against its competitor?
It’s outperforming SBS’s “Flex x Cop 2,” pulling a 9.6% rating compared to its rival’s 6.4% in the same time slot.





