Mohan Joshi Hazir Ho! (movie, 1984)

An old couple, Mohan Joshi and his wife, sues their landlord for not maintaining their 'collapsing' apartment building. For this, they hire two cunning lawyers. The court case drags on for years and the lawyers milk the old couple dry, while they become rich. Back home in the society, the old couple is ridiculed for fighting the landlord, but they fight on nevertheless.