The Only Witness (2003) is a Thriller, Mystery film that follows after witnessing a brutal murder, a little girl is quickly surrounded by a group of law-enforcement professionals and a psychologist. Currently, you can watch The Only Witness on Amazon Prime Video, Amazon Prime Video with Ads, Amazon Video. Streaming availability may vary by country and platform over time. It has a user rating of 4.6 out of 10 from 7 votes. Fans of thriller movies may also want to explore similar titles below.