Eiso Tsubaki, a former aristocrat, was suspected in a murder case in Ginza and committed suicide. Detective Kindaichi Kosuke, who is commissioned by Tsubaki's daughter, Mineko, and believes in her father's innocence, witnesses a bizarre fortune-telling session at the Tsubaki mansion. That night, another murder occurs within the mansion. A visual adaptation of Seishi Yokomizo's gothic horror.