Scarlet Fever (1983)

In a building on the Boulevard Haussmann in Paris lives ten-year-old Roger, who is surrounded by women - his great-grandmother, his grandmother, and his mother Nicole. Living in an exclusively feminine environment, the boy wishes more than anything else to have a masculine presence around. His dream comes true when he meets Jacques, who's madly in love with Nicole and who is about to completely turn the boy's life upside down.

Unfortunately the movie Scarlet Fever is not yet available on HBO Max.