Jennifer's thirtieth birthday party is supposed to be a special day. But what starts out as a day of celebration quickly spirals into a most ill-fated day Jennifer wishes she could forget, in this ensemble comedy set entirely in a kitchen.

When Jane Holman is driving with her two sons, Tom and Gunny, she accidentally runs into a drifter, named Jack McCloud, who breaks his leg. Feeling sorry for him, Jane invites Jack and his dog Betty Jane to stay at her home until his leg has healed. After having some difficulties to adapt to this new lifestyle, Jack soon finds himself loved by the family and they all want him to stay. When he starts teaching baseball to Tom, who misses his father who's missing in the Korean War, the two of them develop a strong bond. Meanwhile Gunny believes that there's more to Jack and Betty Jane than meets the eye, and he's determined to find out!

Janu Nakts (St. John's Night) is a traditional Latvian celebration during which family and friends gather to build bonfires, barbecue, drink and generally have a good time. According to legend, lovers and those who would like to fall in love, can search the woods for the "magic fern" on this night. This magic fern serves as the focus and pivotal point of the six stories in "Midsummer Madness" It is also a metaphor for the film's underlying theme - finding love. "MIDSUMMER MADNESS " is reflected in the recurring element of the magic fern, a metaphor (both in the film and in real life) for love. The question posed by the film is: can a search for love ever be successful? Each story deals with this question. An answer is provided at the film's conclusion in a humorous and unforgettable way: we see the legendary fern, glowing magically in a meadow...