Mary Kills People – S01E04 – What You Are Doing Now Is Murder!

Mary Kills People Season 1 Episode 4 – Watch online

« What You Are Doing Now Is Murder! »

S01E04
8.0
August 9, 2025
1 h 00 min
MBC

Episode summary

So-jung makes a dangerous deal with a drug dealer Gwang-chul (Baek Hyun-jin) in order to acquire the euthanasia drug. The police investigation into the case is becoming increasingly fraught.

The legal platforms listed offer the series in the United States; the version (dubbed or subtitled) depends on each service.

Where to stream Mary Kills People (S01E04)

Free

Plex

Plex Channel

Fawesome

Free with ads

Tubi TV

Buy

Amazon Video

Apple TV Store

Google Play Movies

Fandango At Home

Availability provided by JustWatch via TMDB, details on TMDB. Offers in the United States, subject to change.

About this episode

“What You Are Doing Now Is Murder!” is episode 4 of 12 in season 1 of Mary Kills People. It first aired on August 9, 2025 on MBC. It runs 1 h 00 min. It is rated 8.0/10 by TMDB users, against a season average of 7.9/10.

Frequently asked questions

Where to watch Mary Kills People Season 1 Episode 4 online?

In the United States, Mary Kills People is available for free on Plex, Plex Channel and Fawesome, for free with ads on Tubi TV, to buy on Amazon Video, Apple TV Store and Google Play Movies (source: JustWatch via TMDB, offers subject to change). The version (dubbed or subtitled) depends on the service.