Asako lives in Kichijōji, Tokyo. She works as a popular manga artist. Everyday, she is busy meeting deadlines, but suddenly her pet Saba dies. Since the death of her pet, Asako cannot draw or even eat. Her editor Omori recommends to Asako to try moving to a particular house. After she moves in, her life does not get better.
One day, when Asako walks in Inokashira Park, she meets a homeless person carrying a sick kitten. Asako wants to help the sick cat. Without telling the homeless person, Asako takes the cat to the hospital.
In a residential area, a man is murdered by another man, who broke his apartment. Sergeant Kizaki, who is working near the area, hears a gunshot and runs towards the apartment. Detective Omura already is at the scene of the crime.
During their investigation,they get closer to finding out the identity of the killer. Soon, Sergeant Kizaki feels someone is behind the case. A girl then steps out from the shadows. Sergeant Kizaki feels she is linked to the murders somehow.