Jordan White, a publisher friend of Perry, is called to a hotel where a guest, famous horror writer David Hall, has cleared out the hotel for a weekend and has called his "friends" - an actress, a fortune-teller, David's private assistant and the two remaining staff at the hotel to discuss business. They have come to the hotel as all of them are going to sue David over his new book - "The Resort" which characters are obviously based on Jordan and the guests. A practical joker, David plays tricks on them until he is thrown from the high tower of the hotel where Susan Warrenfield, the manager and owner of the hotel sees the fall and then Jordan at the tower causing the police to arrest Jordan. While Perry and Della try to solve the main mystery, Paul tries to find out who is trying to scare Susan away from the hotel. Could it really be a ghost or a more earthy visitor?
Unfortunately the movie Perry Mason: The Case of the Sinister Spirit is not yet available on HBO Max.
| Directing | Richard Lang | Director |
| Writing | Erle Stanley Gardner | Characters |
| Writing | Anne Collins | Teleplay |
| Writing | Dean Hargrove | Story |
| Sound | Dick DeBenedictis | Music |
| Sound | Fred Steiner | Original Music Composer |
| Camera | Arch Bryant | Director of Photography |
| Art | Paul Staheli | Art Direction |
| Editing | David Solomon | Editor |
| Production | Joel Steiger | Supervising Producer |
| Production | Barry Steinberg | Producer |
| Writing | Joel Steiger | Story |
| Writing | Glenn M. Benest | Story |
| Writing | Timothy Wurtz | Story |
| Production | Fred Silverman | Executive Producer |
| Production | Dean Hargrove | Executive Producer |
| Production | Jeff Peters | Associate Producer |
| Production | Reuben Cannon | Casting |
| Production | Carol Dudley | Casting |
| Production | Barry Steinberg | Unit Production Manager |
| Directing | Jim Weatherill | First Assistant Director |
| Directing | Richard J. Metoyer | Second Assistant Director |
| Costume & Make-Up | Ronn Rynhart | Costume Designer |
| Costume & Make-Up | Judith Scheurwater | Wardrobe Master |
| Costume & Make-Up | Dee Sandella | Makeup Artist |
| Costume & Make-Up | Patti Dallas | Makeup Artist |
| Costume & Make-Up | Judee Guilmette | Hairstylist |
| Costume & Make-Up | Brenda Moen | Hairstylist |
| Art | Dean R. Brown | Construction Coordinator |
| Crew | Roy E. Harrison | Stunt Coordinator |
| Crew | Robert Benjamin | Transportation Coordinator |
| Art | Anne Sammons | Set Decoration |
| Art | Susan MacDonald-Petersen | Property Master |
| Sound | James Emerson | Production Sound Mixer |
| Lighting | Bradford Lipson | Gaffer |
| Camera | Fred Vicarel | Key Grip |
| Camera | Daniel McKinny | Camera Operator |
| Camera | Douglas O'Kane | First Assistant "A" Camera |
| Directing | Jeff Glasser | Script Supervisor |
| Production | Norman Webster | Production Accountant |
| Production | Tina Bennett | Production Secretary |
| Crew | Dennis Smith | Legal Services |
| Production | Brad Blake | Post Production Coordinator |
| Art | Wayne Fitzgerald | Main Title Designer |
| Crew | William S. Kerr | Post Production Supervisor |
| Editing | Carter DeHaven | Assistant Editor |
| Production | Donna Colabella | Production Executive |
| Sound | G. Michael Graham | Supervising Sound Editor |
| Sound | Chris Haire | Sound Re-Recording Mixer |
| Sound | Doug Davey | Sound Re-Recording Mixer |
| Sound | Jerry Clemans | Sound Re-Recording Mixer |
| Sound | Ted Roberts | Music Supervisor |
| Sound | Stan Jones | Music Editor |
| Production | Mike Moder | Executive In Charge Of Production |
