Jack Williams was the best friend of Vietnam veteran and detective Mike Hammer. When Jack is murdered, Mike makes it his business to solve the crime. He is helped by his secretary Velda, and partly helped, partly hindered by the Chief of Police, Pat Chambers. On the trail of the killer, Mike discovers government conspiracies, and plots used by the CIA and the Mafia.
| Directing | Richard T. Heffron | Director |
| Writing | Mickey Spillane | Novel |
| Camera | Andrew Laszlo | Director of Photography |
| Production | Elizabeth Gazzara | Production Assistant |
| Writing | Larry Cohen | Screenplay |
| Production | Marty Hornstein | Associate Producer |
| Production | Michael Leone | Executive Producer |
| Production | Andrew Pfeffer | Executive Producer |
| Production | Robert H. Solo | Producer |
| Sound | Bill Conti | Original Music Composer |
| Editing | Garth Craven | Editor |
| Production | Deborah Brown | Casting |
| Art | Robert Gundlach | Production Design |
| Art | Jack Wright | Set Decoration |
| Costume & Make-Up | Celia Bryant | Costume Design |
| Costume & Make-Up | Jay Cannistraci | Makeup Artist |
| Costume & Make-Up | William A. Farley | Hairstylist |
| Costume & Make-Up | Carl Fullerton | Special Effects Makeup Artist |
