A nerdy guy mixes up a magic formula and becomes invisible whenever he sneezes. He uses his power of invisibility to sneak into his neighbors' bedrooms at night when their husbands aren't home and have his way with them.
- Release Date: February 27, 1969
- Runtime: 75 minutes
- Production countries: United States of America
- Original Title: Henry's Night In
- Original Language: English
Genres: Comedy, Science Fiction
Actors: Mary Bauer, Harvey Shain, Barbara Kline, Phyllis Stengel