A rich, idle young man falls in love with a cabaret singer. Very skilful, she pretends to remain insensitive to this love, thus hoping to better achieve her ambitious ends.

A doctor passionate about research leaves an uncle with an inheritance to die, knowing that he is the legatee. His work succeeds, but overcome by remorse, the doctor tries to commit suicide. He is saved thanks to the understanding of his wife and they both leave for the East to do research on leprosy.