Common Wealth

Julia finds 300 million pesetas hidden in a dead man's house while selling an apartment. She's a 40-ish real estate agent (played by Carmen Maura) now forced to face the wrath of a very peculiar community (of neighbors), headed by an unscrupulous administrator. Black humour gives way to suspense, closely folowed by horror that doesn't take long in coming to a head in undisguised pandemonium. (imdb)