Harper is brought to Louisiana to investigate an attempted blackmail scheme. He soon finds out that it involves an old flame of his and her daughter. He eventually finds himself caught in a power struggle between the matriarch of the family and a greedy oil baron, who wants their property. Poor Harper! Things are not as straight-forward as they initially appeared.
You can now watch The Drowning Pool online on the following streaming providers in the United States.
| Writing | Tracy Keenan Wynn | Screenplay |
| Writing | Lorenzo Semple Jr. | Screenplay |
| Directing | Stuart Rosenberg | Director |
| Writing | Ross Macdonald | Novel |
| Writing | Walter Hill | Screenplay |
| Sound | Michael Small | Music |
| Art | Paul Sylbert | Production Design |
| Production | David Foster | Producer |
| Production | Lawrence Turman | Producer |
| Editing | John C. Howard | Editor |
| Production | Hawk Koch | Associate Producer |
| Art | Edwin O'Donovan | Art Direction |
| Camera | Gordon Willis | Director of Photography |
| Production | Alan Shayne | Casting |
| Art | Pat O'Connor | Property Master |
| Directing | Betty Crosby | Script Supervisor |
| Directing | Hawk Koch | Assistant Director |
| Sound | Larry Jost | Sound Mixer |
| Costume & Make-Up | Richard Bruno | Wardrobe Supervisor |
| Camera | Richard Yuricich | First Assistant Camera |
| Production | Arthur S. Newman Jr. | Production Manager |
| Camera | Ralph Gerling | Camera Operator |
| Lighting | George Holmes | Gaffer |
| Costume & Make-Up | Kaye Pownall | Hairstylist |
| Art | Phil Abramson | Set Decoration |
| Crew | Paul Casella Jr. | Transportation Captain |
| Camera | Art Brooker | Key Grip |
| Crew | Stan Barrett | Stunt Coordinator |
| Costume & Make-Up | Monty Westmore | Makeup Artist |
| Writing | Eric Roth | Writer |
| Costume & Make-Up | Donald Brooks | Wardrobe Designer |
