Jean Claude Van Damme plays a dual role as Alex and Chad, twins separated at the death of their parents. Chad is raised by a family retainer in Paris, Alex becomes a petty crook in Hong Kong. Seeing a picture of Alex, Chad rejoins him and convinces him that his rival in Hong Kong is also the man who killed their parents. Alex is suspicious of Chad, especially when it comes to his girlfriend.
You can now watch Double Impact online on the following streaming providers in the United States.
| Camera | Richard H. Kline | Director of Photography |
| Production | Paul Michael Glaser | Producer |
| Writing | Sheldon Lettich | Screenplay |
| Directing | Sheldon Lettich | Director |
| Writing | Jean-Claude Van Damme | Screenplay |
| Production | Jean-Claude Van Damme | Producer |
| Production | Ashok Amritraj | Producer |
| Editing | Mark Conte | Editor |
| Production | Moshe Diamant | Executive Producer |
| Sound | Arthur Kempel | Original Music Composer |
| Crew | Peter Malota | Stunts |
| Crew | Peter Malota | Martial Arts Choreographer |
