From Beyond Evil to Flower of Evil: 5 K-Dramas That Redefined Serial Killer Thrillers

The Art of Sarah (2026) is a gripping mystery thriller directed by Kim Jin-min and written by Chu Song-yeon, starring Shin Hye-sun and Lee Jun-hyuk. The series follows a glamorous socialite who builds a fraudulent luxury empire, only for her world to unravel when a brutal murder exposes her fabricated identity. When a body identified as Sarah Kim is discovered in Seoul’s upscale Cheongdam district, Detective Park Mu-gyeong begins an investigation that reveals she never truly existed. What follows is a tense psychological cat-and-mouse game as he races to uncover the real woman behind the illusion. Blending suspense with sharp commentary on society’s obsession with status and luxury, the series is available to stream on Netflix. 

Beyond Evil (2021) is a gripping psychological thriller starring Shin Ha-kyun and Yeo Jin-goo. Set in a quiet town, it follows two clashing detectives investigating murders linked to a 20-year-old cold case. As suspicion deepens, a tense cat-and-mouse game unfolds, questioning who the real monster is. The series is available on Netflix.

Flower of Evil (2020) is a critically acclaimed South Korean psychological thriller and romance drama starring Lee Joon-gi and Moon Chae-won. The story revolves around Baek Hee-sung, a seemingly perfect husband and father who is actually living under a stolen identity as Do Hyun-soo, the son of a notorious serial killer. His carefully constructed life begins to unravel when his wife, homicide detective Cha Ji-won, starts investigating a series of cold-case murders that lead her dangerously close to the truth about her own husband. Blending emotional depth with intense suspense, the series features strong performances from its cast, including Jang Hee-jin, Seo Hyun-woo, and Kim Ji-hoon, and is available to stream on Amazon Prime Video. 

Tell Me What You Saw (2020) is a gripping South Korean crime-thriller that follows Oh Hyun-jae (Jang Hyuk), a brilliant but reclusive criminal profiler haunted by the murder of his fiancée. His path crosses with Cha Soo-young (Choi Soo-young), a rookie detective gifted with a photographic memory, and together they team up under the leadership of Hwang Ha-young (Jin Seo-yeon) to track down a dangerous serial killer. Blending intense suspense with emotional depth, the series stands out for its sharp storytelling and strong performances, and is currently available to stream on Prime Video. 

The series follows Jeong Ba-reum (Lee Seung-gi), a kind-hearted rookie police officer, and Go Moo-chi (Lee Hee-joon), a hardened detective driven by personal revenge, as they hunt a ruthless serial killer terrorizing the nation. As the investigation unfolds, Ba-reum’s life takes a shocking turn after a near-fatal encounter, while Moo-chi’s past fuels his relentless pursuit of justice. Alongside them are Oh Bong-i (Park Ju-hyun), a resilient teenager with a traumatic history, and Choi Hong-ju (Kyung Soo-jin), a TV producer hiding a dark secret tied to the killings. Known for its intense storytelling, moral dilemmas, and a jaw-dropping mid-season twist, the series keeps viewers on edge and is currently available to stream on Prime Video.