Mesen

[Machine Translation] Eleven family members and friends gather at the Dojima residence, located in a quiet, upscale residential area, to celebrate the birthday of Shinnosuke, the owner of the house. However, Shinnosuke, who said he had a "happy announcement to make," jumps off the balcony of his room and dies. His death was ruled a suicide, but no one knew the contents of the phone call he received just before he jumped to his death. Then came the seventh day of the seventh month. At the Dojima residence, where the family is sinking in grief, a new victim emerges. Three detectives begin their own investigation to get to the bottom of the case shrouded in mystery.

閑静な高級住宅街に佇む堂島邸には、主人である新之助の誕生祝いのため、家族や友人ら11人が集っていた。だが、「めでたい発表がある」と言っていた新之助は、自室のベランダから飛び降り、亡くなってしまう。その死は、自殺として処理されたが、飛び降りる直前に掛かってきた電話の内容は誰にも分からなかった。そして、初七日。哀しみに沈む堂島邸で、新たな犠牲者が出る。謎に包まれた事件の真相を究明するべく、3人の刑事が独自の捜査を開始した。