A movie sound recordist accidentally records the evidence that proves that a car accident was actually murder and consequently finds himself in danger.
 
Don't blow past this one, give it a chance.
 
FUN FACT:  Quentin Tarantino stated in an interview that this film is his favorite Brian De Palma movie. In fact, Tarantino cast John Travolta in Pulp Fiction (1994) because he liked his performance in this movie so much.