6 out of 10
A mysterious man, who works for a mysterious organization, is being chased by some mysterious killers, for some unknown and mysterious reason. Has all the trappings of a bubblegum thriller and when you scrape away all the flashiness that is really all you get.
Not that it isn't entertaining. The camera movements and angles are downright dazzling. I especially liked those frantic zoom shots that look like it's shot from a camera put on a roller coaster car. There is also some interesting use of lighting and framing. Not to mention some terrific on location shooting especially the Niagara Falls finale. The story is very fast paced with a new twist coming with literally every scene. There is also a wide assortment of other gimmicks used that on a non-think level can be fun, especially during the first hour. The haunting music score is good too although it gets played a bit too much.
The problem really comes with the fact that all these twists and turns really add up to a lot of nothing. Too much is left unexplained and the final revelation seems far-fetched. There is a wide segment of other loopholes and there is just the plain old fact that you have probably seen a lot of this before. It also becomes very cliched and even kind of annoying at the end. The film expects you to become close to characters that on the whole are very poorly fleshed out.
The movie does offer a great opportunity to see Janet Margolin who is a very uniquely and naturally beautiful woman. Even when she is made to look frumpy she is beautiful. She has a face that looks like it never got past 21. She closely resembles 80's porn stars Kelly Nichols or Jennifer Noxt.
Scheider does not fare as well. He looks alright, but his presence is very transparent. He just doesn't seem to have a strong enough personality or acting ability to really create a memorable or forceful impression. Also that white suit he wears all the time has really got to go.
Overall despite it's best efforts it is still just a poor man's Hitchcock. The real thing is still better.