In San Francisco, eight passengers and the driver of a bus are killed by a passenger with machine gun. Police detectives Jake Martin (Walter Matthau), Leo Larsen (Bruce Dern) and James Larrimore (Lou Gossett) find the body of Martin´s partner Dave Evans (Anthony Costello) among the victims. Lieutenant Steiner (Anthony Zerbe) assigns Larsen to be the new partner of Martin, who is obsessed by the murder of his former partner. He meets Evans' girlfriend that believed he was working in overtime with Martin. Now the detective is convinced that Evans was investigating the wealthy Camerero (Albert Paulsen), who was the prime suspect of a murder case two years ago.
"The Laughing Policeman" is a gloomy and gritty crime story with Walter Matthau and Bruce Dern in the leading role. The beginning is promissing with the massacre of passengers in a San Francisco bus. The pace is slow, and the plot is realistic, but dated. However, there are many parts that go nowhere, such as Larrimore with the pimp or the meeting with the Hell's Angels or the relationship of Jake Martin with his family. My vote is six.
Title (Brazil): "Matança em São Francisco" ("Slaughter in San Francisco")