Mary Kills People (메리 킬즈 피플) is a South Korean television drama series. It stars Lee Bo-Young, Lee Min-Ki, and Kang Ki-Young. The drama is a remake of the Canadian series Mary Kills People, which aired from 2017 to 2019.

The show is scheduled to premiere on August 1, 2025, on MBC, airing every Friday and Saturday at 22:00 KST. 


What Is This Drama About?

Woo So-Jeong (played by Lee Bo-Young) is a doctor who helps terminally ill patients end their pain through euthanasia, even though it is illegal. She works with Dr. Choi Dae-Hyun (Kang Ki-Young).
Detective Jo Hyun-Woo (Lee Min-Ki) is assigned to investigate them. However, he also suffers from a terminal brain tumor, which makes the case personal and emotional.

When Does It Start?

  • First Episode: August 1, 2025

  • Where: MBC

  • Time: Fridays & Saturdays at 10:00 PM (Korean time)

Who’s In the Cast?

  • Lee Bo-Young as Woo So-Jeong

  • Lee Min-Ki as Jo Hyun-Woo

  • Kang Ki-Young as Choi Dae-Hyun

  • Other cast: Kim Tae-Woo, Baek Hyun-Jin, Kwon Hae-Hyo, and more

What Happens in the New Teaser Trailer?

The latest teaser trailer gives a glimpse into the emotional and intense story of Mary Kills People. In the trailer, Lee Bo-Young, who plays the lead doctor, says that if the only way to ease a patient’s pain is through death, she wants to help them that way. This statement shows the serious moral struggle her character faces. Other characters react strongly to her decision. Lee Min-Ki calls it “murder,” challenging what she’s doing. In response, Lee Bo-Young says she’s sorry and will take full responsibility. The short scenes in the teaser show that this drama will be full of strong emotions, difficult choices, and deep questions about life and death.