Yuuya, who runs a real estate company, lives happily with his wife Hana and their daughter Momo in a quiet residential neighborhood. One day, a man harboring deep resentment against Yuuya arrives with yakuza thugs and attacks their home while Yuuya is away. The intruders assault Hana, who was doing housework, and violently harm Momo upon her return home. Afterwards, the men contact Yuuya via video call, forcing him to watch the prolonged physical and psychological torture inflicted upon his beloved wife and daughter.