Diabolique (1955)
The cruel and abusive headmaster of a boarding school, Michel Delassalle, is murdered by an unlikely duo -- his meek wife and the mistress he brazenly flaunts. The women become increasingly unhinged by a series of odd occurrences after Delassalle's corpse mysteriously disappears. wife, female lover, morgue, swimming pool, gay interest, teacher, plan gone wrong, mistress, french noir, boys' boarding school, headmaster, philanderer, mischievous children, missing body, abusive husband, abused wife, wicker trunk, frightened woman
ETC.
