Watch Perfect Witness for Free: How to Stream the Movie Online at 123Movies. . An innocent man is thrust into a political power struggle in this drama. After witnessing a mob killing, New York restaurant owner Sam Paxton (Aidan Quinn) reports the crime. Overzealous attorneys (Brian Dennehy and Stockard Channing) put pressure on Paxton to testify in court, but Paxton is in a tough spot when the mob starts threatening his family. Paxton now faces an impossible choice: testify and put his family at risk … or go to jail.