Buried Hearts

“Buried Hearts” (Korean: “보물섬,” literally “Treasure Island”) is a 2025 South Korean revenge-thriller by SBS and Disney+, written by Lee Myung‑hee and directed by Jin Chang‑gyu.

Plot Synopsis

Seo Dong‑ju (Park Hyung‑sik) is an elite executive secretary at Daesan Group with a photographic memory and hidden ambition. He hacks a 2 trillion won political slush fund, triggering a fallout when Yeom Jang‑seon (Huh Joon‑ho) – a shadow powerbroker – orders his assassination, unaware of the hack. Dong‑ju survives but loses his memory, setting a deadly game of revenge and power behind the scenes.

Deeply rooted in crime, mystery, and political intrigue, the series explores moral questions: What truly matters – memory, revenge, or redemption?

Cast & Characters

Main Cast

• Park Hyung‑sik as Seo Dong‑ju / Chu Seong‑hyeon: A cunning, talented corporate secretary whose quest for power drives the narrative.
• Heo Joon‑ho as Yeom Jang‑seon – A former National Intelligence Service (NIS) chief, current law professor, and mastermind who manipulates politics and corporations to protect his agenda.
• Hong Hwa‑yeon as Yeo Eun‑nam – Daesan Group heiress and Dong‑ju’s love interest, striving to uncover her father’s death.
• Lee Hae‑young portrays Heo Il‑do – CEO of Daesan Energy and ambitious chaebol son‑in‑law.

Supporting Cast

Includes Woo Hyun, Kim Jung‑nan, Do Ji‑won.

Reception

Ratings Surge to Champion Status

Not a breakout out-of-the-gate hit (started at ~6%), but quickly rose to around 10–12%, peaking at 15.4% average and 17.9% peak by finale – a 2025 Korean series ratings champion.

Acclaim for Plot and Performances

Praise focuses on its tightly-woven plot, emotional depth, and powerful performances behind and in front of the camera, cementing its critical success.

Acclaimed Lead Performance

Reddit fans hail Park Hyung-sik’s performance as “career-best,” balancing emotional vulnerability and physical intensity.

Suspenseful Yet Familiar Plot

“Buried Hearts” is praised for suspenseful, twist-heavy plotting, though some view the core revenge-chaebol storyline as repetitive and familiar to “Reborn Rich,” “Money Flower,” and “Vincenzo.”

Fun Facts & Highlights

Intense Action Sequences

Known for gut-wrenching scenes, including underwater and hand-to-hand action that the lead actor performed himself.

Emotional Depth and Moral Core

Emphasizes raw human emotion and the cost of revenge, underscored by its moral question: “What is your real treasure?”

Where to Watch

Broadcast Schedule

Aired on SBS.

Streaming Access

• South Korea: Disney+.
• U.S.: Hulu.
• Globally: Disney+.

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