A new infection that simply makes people feel happy is treated as a threat by the authorities while its "victims" work to spread it to others.
Is What's So Bad About Feeling Good? on Netflix? Unfortunately the movie What's So Bad About Feeling Good? is not yet available on Netflix.
| Production | Gordon Cornell Layne | Associate Producer |
| Costume & Make-Up | Colleen Callaghan | Key Hair Stylist |
| Art | Henry Bumstead | Art Direction |
| Art | Dorcy Howard | Set Decoration |
| Sound | Jim Shields | Sound |
| Costume & Make-Up | Sheryl Deauville | Assistant Costume Designer |
| Sound | Frank De Vol | Music |
| Art | Alexander Golitzen | Art Direction |
| Art | John McCarthy Jr. | Set Decoration |
| Costume & Make-Up | Bud Westmore | Makeup Supervisor |
| Crew | Ernesto Caparrós | Cinematography |
| Costume & Make-Up | Larry Germain | Hairstylist |
| Directing | Donald Roberts | Assistant Director |
| Editing | Alma Macrorie | Editor |
| Writing | Vincent McHugh | Novel |
| Sound | Waldon O. Watson | Sound |
| Sound | Joseph Gershenson | Music Supervisor |
| Writing | George Seaton | Screenstory |
| Writing | Robert Pirosh | Screenplay |
| Costume & Make-Up | Edith Head | Costume Design |
| Production | George Seaton | Producer |
| Directing | George Seaton | Director |
