Sygnaly is a 1938 Polish drama directed by Joseph Lejtes about a pair of jewel thieves. A older man and a young woman, with the elder manipulating the frail one into the world of crime.
Zenon Ziembiewicz comes back to his hometown after graduating from the university in Paris. He gets entangled in a love triangle with educated young lady Elzbieta and a common country girl Justyna who gets pregnant.
Ryszard Malewicz, a young inventor, is out of work. He had been waiting for months for a response from the ministry to which he had sent plans for his invention, an explosive of extraordinary power. Desperate Ryszard is comforted by his mother and his fiancée Maria.
Polish seaman returns home from Tahiti with a native lover and a fortune in sacred pearls, gets seduced by a married woman unaware she is part of a gang trying to get his riches.
A spy film about Professor Skalski's invention - rays that could stop engines, thus avoiding wars - which becomes the focus of foreign intelligence. In order to take over the discovery, a secret agent is sent to reach the invention via the professor's son.