Summary: 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. (imdb)

Genre: Comedy

Country: USA

Directed By: George Seaton

Written By: Robert Pirosh, Vincent McHugh

Starring: Dom DeLuise, Mary Tyler Moore, Thelma Ritter, Cleavon Little, George Peppard, Susan Saint James, Charles Lane, Don Stroud, Frank Campanella

More information at the Internet Movie Database