Sophie, a quiet and shy maid working for an upper-class French family, finds a friend in the energetic and uncompromising postmaster Jeanne, who encourages her to stand up against her bourgeois employers.
Inspector Lavardin is called to a provincial village to investigate a murder – only to find that one of his ex-lovers is the victim’s widow.
A sexually repressed school teacher releases her pent up passions in a series of shocking crimes.
