The Small Town of Miwabashira

In the small town of Miwabashira, a chain of murders has happened out of nowhere. A famous detective, Matsumura, has been dispatched to solve the case. Told within the perspectives of the people around him, it appears that such a case may have its effect even to those without any knowledge of the case. (Note: Set in a fictional town in Japan, any resemblance of characters and places are NOT on purpose.)