Nora inu
The film takes place during a heatwave in post-war Tokyo. Rookie homicide detective Murakami (Toshiro Mifune) has his Colt pistol stolen during a trolley ride. He chases the pickpocket, but loses him. Filled with shame, he reports the theft at headquarters. He prowls the city backstreets undercover for days, looking for suspects and picking up leads. He eventually picks up the trail of a gun racket.
When the stolen gun is used in a crime, Murakami partners up with the veteran detective Satō (Takashi Shimura). After questioning a suspect, Satō and Murakami end up at a baseball game looking for a gun dealer named Honda. He points them to Yusa, a disenchanted war veteran who has resorted to crime. They investigate Yusa's sister's house and his sweetheart, showgirl Harumi Namiki (Keiko Awaji), to no avail.
Murakami's gun is used again, this time as a murder weapon. They question Namiki at her mother's house. She is still reticent to talk, so Satō leaves to investigate Yusa's trail, while Murakami remains behind. Satō comes across Yusa's last hideout. He places a call for Murakami, but, just as he is about to reveal Yusa's location, the criminal makes a run for it. Satō gives chase, but is shot in the rain and left for dead. A desperate Murakami arrives soon enough to donate blood to his friend at the hospital.
The following morning, Namiki has a change of heart and informs Murakami at the hospital that she had an appointment with Yusa at a train station nearby. Murakami races to the meeting and deduces who Yusa is from his mud spattered clothing. He pursues his quarry into a forest and is wounded in the arm, but manages to take Yusa into custody. Back at the hospital, Satō has recovered and congratulates Murakami on his first citation. Murakami reflects on Yusa's plight and on the parallels between him and the criminal. Satō tells him to forget about Yusa and get ready for the cases he will solve in the future.
bleak, suspenseful, murder, atmospheric, flashback