Een nieuw soort virus dat mensen simpelweg gelukkig maakt wordt gezien als een bedreiging door de autoriteiten. Ondertussen verspreiden de 'slachtoffers' het virus zoveel mogelijk.
Nee, helaas is What's So Bad About Feeling Good? nog niet beschikbaar op Netflix in Nederland.
| Costume & Make-Up | Sheryl Deauville | Assistant Costume Designer |
| Production | Gordon Cornell Layne | Associate Producer |
| Sound | Frank De Vol | Music |
| Crew | Ernesto Caparrós | Cinematography |
| Editing | Alma Macrorie | Editor |
| Art | Henry Bumstead | Art Direction |
| Art | Alexander Golitzen | Art Direction |
| Art | John McCarthy Jr. | Set Decoration |
| Art | Dorcy Howard | Set Decoration |
| Costume & Make-Up | Colleen Callaghan | Key Hair Stylist |
| Costume & Make-Up | Larry Germain | Hairstylist |
| Costume & Make-Up | Bud Westmore | Makeup Supervisor |
| Directing | Donald Roberts | Assistant Director |
| Sound | Jim Shields | Sound |
| Sound | Waldon O. Watson | Sound |
| Sound | Joseph Gershenson | Music Supervisor |
| Writing | Vincent McHugh | Novel |
| Writing | George Seaton | Screenstory |
| Writing | Robert Pirosh | Screenplay |
| Costume & Make-Up | Edith Head | Costume Design |
| Directing | George Seaton | Director |
| Production | George Seaton | Producer |
