An abandoned car is discovered near a camping ground and inside it is the body of an identified middle-aged man and a dog who seems to have died months later. This is the story of the life of the loving and faithful dog and his owner told from the dog’s point of view. City hall employee Kyousuke Okutsu is assigned to uncover the man’s identity for a proper funeral. As he investigates the situation, he remembers his late family and his own dog’s unfailing loyalty.

Movie contains the stories of three people: Suzuki (Toma Ikuta), Kujira (Tadanobu Asano) and Semi (Ryosuke Yamada). Suzuki is a former middle school teacher. His girlfriend was killed, which led him to quit his job and attempt to take revenge on her murderer. To do so, Suzuki has to infiltrate the underground world of criminals. Kujira is a contract killer for hire. He makes his targets fall into confusion and eventually commit suicide. Semi is a contract killer who uses the knife to take out his targets.