A criminology professor uses scientific methods, advanced computer technology, his expertise in chess, and the leg work of several of his students to track down a crazed killer in San Francisco.
| Actor | Role |
|---|---|
 William ConradThaddeus Smith | Thaddeus Smith |
 Belinda MontgomeryKelly | Kelly |
 Hilly HicksEddie | Eddie |
 James DarrenGeorgie Green | Georgie Green |
 Michael ParksLt. Brophy | Lt. Brophy |
 Cameron MitchellCol. Simmons | Col. Simmons |
 Tracy ReedAnini | Anini |
 Nehemiah PersoffAshmed Amad | Ashmed Amad |
 Richard DimitriSharif | Sharif |
 Nita TalbotSgt. McCallister | Sgt. McCallister |
| GGail LandryDr. Rita Downey | Dr. Rita Downey |
 Sondra BlakeVictoria Simmons | Victoria Simmons |
| AAdam AgeliBob Fuad | Bob Fuad |
 Ben WrightFranz Gerhardt | Franz Gerhardt |
 Brianne LearyGirl on Slab in Lab | Girl on Slab in Lab |