Walking on Thin Ice

Faced with her husband’s worsening illness and mounting debt, Eunsoo stumbles upon a bag of narcotics that could change everything. Meanwhile, Detective Jang Taegu intensifies his investigation into the city’s drug trade.

Eunsoo cautiously enters the criminal underworld and encounters Lee Kyung, her daughter’s teacher with hidden ties to the drug network. Their uneasy alliance sets her on an irreversible path.

Police officer Jang Taegu faces mounting pressure to speed up the investigation into the missing bag of drugs. His search uncovers new leads pointing toward the elusive figure known as James.

After a setback, Eunsoo and James reconcile and begin working together — but the police aren’t the only ones on their trail.

Eunsoo tries to divert police suspicion, but rumors and jealousy close in - culminating in a sudden attack on her and Mr. Lee.

Eunsoo and Mr. Lee find themselves in a dangerous situation that escalates quickly. Haunted by guilt and facing tough choices, Eunsoo must navigate the consequences while confronting her limits in a tense and risky environment.

The police catch the elusive Phantom, but Eunsoo and Mr. Lee are threatened and blackmailed by an unknown assailant. As they try to uncover who is behind it, tensions rise and secrets emerge. In a dramatic turn, Mr. Lee exposes the culprit, revealing shocking truths that change everything.

The events take an unexpected turn, and while Mr. Lee is already on the verge of reaching his goal, Eunsoo makes an unexpected move.

Eunsoo puts her plan into action, but will Dojin agree to follow her lead? As more of Mr. Lee’s past comes to light, his true motives become clearer. Meanwhile, Sua encounters a mysterious stranger during her part-time job.

Recent events and their vulnerable circumstances draw Eunsoo and Mr. Lee closer as they devise a plan together. But what move will Jang Taegu make next?

Eunsoo and Mr. Lee finally confront Jang Taegu, but how long can their fragile victory last? As Kang Hwirim uncovers James’s true identity, secrets ignite a chain of irreversible events. Loyalties shift, fates collide, and the thin ice beneath them begins to crack.

Eunsoo and Mr. Lee are under arrest, but is this truly the end for them—or just another beginning? As the walls close in, long-buried secrets and unfinished schemes resurface. With fate tightening its grip, one final move could destroy everything… or set them free.