Achiara is a quiet, peaceful village where almost no crime has occurred for years. The tranquility is shattered when Han So-yoon, an English teacher who has just arrived in the village, discovers a buried corpse. As the police begin an investigation, the town's dark and long-hidden secrets start to surface, revealing that the residents are not as innocent as they appear. So-yoon teams up with Park Woo-jae, a passionate and persistent police officer, to uncover the truth behind the identity of the deceased and the circumstances of her death. As they peel back the layers of the village's history, they encounter a web of lies, corruption, and buried trauma that connects the victim to many of the town's most prominent families.