A teacher, driven to exasperation from insults and insubordination, takes her class hostage.
Hippolyte, the titular oddball, is a far from typical country lawyer. He has been happily married to the woman of his dreams for 15 years, but has an incurable penchant for practical (or rather impractical) jokes.
After a one-night fling, Florence Lacaze, a married woman, finds her lover's dead body in a hotel bathroom. Drawn into a hunt by police, Florence is forced to defend herself and uncover the awful truth.