In search of purpose, 17-year-old Claudio helps easygoing mechanic Stefano build a car capable of winning a street race that could solve his financial problems, but gets himself involved with the latter's former girlfriend.

Francesco Cesena, a middle-aged policeman, while carrying out a routine operation, is involved in a firefight in which his colleague loses his life. Cesena, wounded, shoots and kills the convict and his wife. About a year later two young men, Fabrizio and Simonetta, are arrested for stealing a car. Cesena and his assistant Cane, the same age as the two boys, have the task of interrogating them. Partly out of boredom at the late hour, partly out of curiosity, Cesena makes the two believe they know far more serious things about them than car theft.

Two friends reminisce about their last days of high school, when one of them ruined his shot at young love due to his jealousy and possessiveness.