- Country: USA
- Genres: Drama
- Release: 1921-01-23
- Director: William C. de Mille
- Writers: Cosmo Hamilton , Olga Printzlau
- Language: None | English
- Stars: Jack Holt , Conrad Nagel , Lois Wilson , Lila Lee , Betty Francisco , Claire McDowell , Peaches Jackson , Ethel Wales , Charles Ogle , Lillian Leighton
- Runtime: 60 min
- Awards: N/A
- AKA: Midsummer Madness , 真夏の狂乱 (Japan) , His Friend and His Wife (United States of America) , Midsummer Madness (United States of America) , Folie d'été (France, French Republic) , En Sommernatsrus (Denmark) , För att begära henne (Sweden)
- Plot: When Julian's wife Daisy leaves home to visit her sick father, he finds himself attracted to his best friend's wife, Margaret, who has been neglected by her husband. Julian and Margaret take a drive to a mountain resort, and find themselves about to consummate their affair when something happens that makes her have second thoughts. Complications ensue.
- IMDB:tt0011462
Midsummer Madness Cast · · · ALL
William C. de Mille
Director
Jack Holt
Bob Meredith
Conrad Nagel
Julian Osborne
Lois Wilson
Margaret Meredith
Lila Lee
Daisy Osborne
Betty Francisco
Mary Miller
Claire McDowell
Mrs. Osborne
Peaches Jackson
Peggy Meredith
Ethel Wales
Mrs. Hicks
Charles Ogle
Caretaker
Lillian Leighton
Caretaker's Wife
George Kuwa
Servant