The conflict between a reactionary surgeon and his progressive son over new methods of surgery.

A bus traveling from Belgrade to Zagreb is involved in a tragic accident when a reckless driver causes a catastrophic collision on a rainy night, leading to the tragic deaths of several passengers.

Martin and his girlfriend Zorica are two students who live as subtenants in separate flats. Since that situation has devastating effect on their love life, they yearn after the place of their own. When Martin's landlords go to the hollidays, it seems that their prayers, at least temporarily, had been listened to. However, the idilla is very short one, because other people also want to use the situation.

Perez kidnaps the President's daughter to trade her for imprisoned revolutionaries.

The plot takes place during the Civil War in Greece, and it shows the fight of communist partisans, against the pro-Western, monarchist government. During the shooting, there was a discord between Yugoslavia and the Soviet Union because of the famous IB resolution, which caused Yugoslav authorities to stop supporting Stalinists. Tito's government acknowledged Greek monarchists as a legitimate government, and not wanting to remind the public of their ideological discrepancy, bunkered "Majka Katina" for a few decades.