The Perfect Lie

1. Synopsis

The Perfect Lie follows the story of Kang Ji-seon, an elementary school teacher, and Min Jun-ho, a cardiac surgeon who raises his son alone.^[4][5]After an apparently perfect first encounter, the two begin giving completely opposing accounts of the same memory. ^[4] As their stories collide, they engage in an intense search for the truth, where it becomes increasingly difficult to distinguish between truth and lies. ^[4][5]

2. Cast

2.1. Main

• Yoo Yeon-seok as Min Jun-ho^[6]a cardiac surgeon who raises his son as a single father.^[7]
• Seo Hyun-jin as Kang Ji-seon^[6] an elementary school librarian who becomes involved with Min Jun-ho.^[7]
• Ok Ja-yeon as Lee Hwa-young^[8]
• Im Sung-jae as Park Seok-gu^[8]
• Kim Ji-hyun as Kang Ji-eun^[8]
• Lee Chun-hee as Kim Hyung-soo^[8]

3. Production

3.1. Development

The series was first announced in late 2025 as a joint production between Kakao Entertainment and its subsidiary Zip Cinema. Director Jo Young-min was confirmed to lead the project. The script is written by Baek Jae-young.^[6]

3.2. Casting

In December 2025, it was confirmed that Yoo Yeon-seok and Seo Hyun-jin would reunite as lead actors eight years after their collaboration in Dr. Romantic.^{[6] [9]}