A Harvard University student finds a strange letter that seems to be signed by George Washington. When trying to contact an expert (Prof. Chandler) to authenticate it, he is murdered but the letter disappears. Then Chandler, who does not know anything about the case, gets chased by the mafia and haunted by a TV reporter (Polly Bishop).
Unfortunately the movie Dirty Tricks is not yet available on HBO Max.
| Directing | Alvin Rakoff | Director |
| Writing | Eleanor E. Norton | Screenplay |
| Costume & Make-Up | Blanche Boileau | Costume Design |
| Art | Earl G. Preston | Art Direction |
| Editing | Alan Collins | Editor |
| Costume & Make-Up | Michele Dion | Makeup Artist |
| Costume & Make-Up | Jocelyne Bellemare | Makeup Artist |
| Writing | Thomas Gifford | Novel |
| Writing | Camille Gifford | Screenplay |
| Writing | William W. Norton | Screenplay |
| Production | Victor Solnicki | Executive Producer |
| Writing | Thomas Gifford | Screenplay |
| Production | Claude Héroux | Producer |
| Production | Arnold Kopelson | Executive Producer |
| Sound | Hagood Hardy | Original Music Composer |
| Production | Pierre David | Executive Producer |
| Camera | Richard Ciupka | Director of Photography |