Complex sentence: Rookie homicide detective Murakami (Toshiro Mifune) has his Colt pistol stolen during a trolley ride and gives chase to the pickpocket, but when he fails to capture him he reports back to headquarters filled with guilt and shame.
Split into simpler sentences: Rookie homicide detective Murakami (Toshiro Mifune) has his Colt pistol stolen during a trolley ride and gives chase to the pickpocket. When he fails to capture him he reports back to headquarters filled with guilt and shame.