Jukkakukan no Satsujin (2024)

Other name: 十角館の殺人 / The Decagon House Murders

Synopsis: Six months after the mysterious death of Nakamura Seiji, owner of the Decagonal Building, a group of seven individuals from a university’s mystery research group visit the uninhabited Tsunojima Island, where the building is located, for a training camp. Kawaminami Takaaki, a former club member, receives a letter from Nakamura, who is supposed to be dead, and joins forces with Shimada Kiyoshi to uncover the truth behind the island’s mysteries. However, their investigation is interrupted when one of the group members is found dead at the Decagon. With no way to leave the isolated island for a week, the remaining members must figure out if there is a connection between the two murders and who among them could be the culprit. Based on the novel “The Decagon House Murders” by Ayatsuji Yukito, this drama consists of 5 episodes and airs on Fridays.