A group of policemen look over three murder cases including a cutthroat that prays on young women, a madman that hid his deformed landlord's corpse in the floor, and a wine aficionado who buries his friend alive.
An airplane manufacturer asks his son-in-law to try out the prototypes he builds. This one ends up having an accident because of fatigue, and pushes the sacrifice to help his rival.
A poor peasant family, a failed cabinet maker and an unemployed worker struggle in contrast to crooked rich businessmen. nearby.A Communist meeting gives young workers hope for a better future.