"Tsukidate no Satsujin" is a mystery manga centered around a small, rural village called Tsukidate, where a series of murders disrupts the seemingly tranquil community. The story begins with the discovery of a body in the woods, marking the first in a string of killings that grow increasingly complex and interconnected. The murders are tied to the village's history, revealing long-buried secrets and unresolved conflicts among its residents.

The protagonist, a young detective named Haruto Kanzaki, is assigned to investigate the case. Haruto is methodical and observant, but his outsider status in the village creates tension with the locals, who are wary of his presence. As he delves deeper, he uncovers a web of relationships and grudges among the villagers, many of whom have personal stakes in the case. Key figures include the village elder, who holds knowledge of the community's past, and a reclusive artist whose work seems to mirror the murders in unsettling ways.

The narrative unfolds through a series of flashbacks and present-day investigations, gradually piecing together the motives and identities of those involved. Each murder is intricately planned, with clues hidden in the village's folklore and traditions. The story explores themes of guilt, revenge, and the impact of past actions on the present, as Haruto races against time to prevent further deaths.

As the investigation progresses, alliances shift, and trust becomes a scarce commodity. The villagers' reluctance to cooperate complicates Haruto's efforts, forcing him to rely on his instincts and deductive skills. The climax reveals a shocking connection between the murders and a decades-old tragedy, culminating in a confrontation that exposes the true culprit and their motivations.

"Tsukidate no Satsujin" is a tightly woven mystery that combines elements of psychological suspense and traditional whodunit storytelling. Its focus on character dynamics and the interplay between past and present creates a compelling narrative that keeps readers engaged until the final revelation.