Fallait pas!... (1996)

On the way to his wedding, Bernard (Gerar Jugnot) experiences car trouble. What could be more natural than to stop at the nearest respectable looking house and ask for help? How could he have known that at that very moment the house's residents, members of a cult, are busily committing mass suicide? Bernard escapes with his own life, and takes with him Sebastien (Francois Morel), an addled cult member who has somehow avoided his compatriots' fate. However, he has also incurred the wrath of the cult's leader, "Magic" (Jean Yanne) and his assistant (Martin Lamotte), both of whom are very much alive. This sinister duo follows Bernard to his fiancee's house, where a social disaster is in progress. In a high point of this French comedy, Bernard's upper-crust fiancee Constance (Michele Laroque) handles the intruders with wit, invective, and well-bred intolerance