Murder at Shijinsou

University students Yuzuru Hamura and Kyosuke Akechi, who are both interested in mystery novels; with student detective Hiruko Kenzaki from the same university, attend a summer camp and stay at Shijinso pension in the mountains. On their first day there, they must barricade themselves in the pension. The next morning, they discover a murder has taken place in the pension.
~~ Adapted from the novel "Shijinsou no Satsujin" (屍人荘の殺人) by Imamura Masahiro (今村昌弘).