Overview

Mary Boyne, who made shirts at four dollars a week, had no place for love in her life - only despair and hate for the son of the man who had plunged her family into deepest distress. Peter Kenwitz loved Mary, but because he was a mathematician and a pessimist by trade, his love was as hopeless as her chance for happiness.

Cast

Corinne Griffith, Huntley Gordon, Harry Davenport, Jack McLean, Jack Ridgeway, F.R. Buckley

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Frequently asked

What is "The Unknown Quantity" about?

Mary Boyne, who made shirts at four dollars a week, had no place for love in her life - only despair and hate for the son of the man who had plunged her family into deepest distress. Peter Kenwitz loved Mary, but because he was a mathematician and a pessimist by trade, his love was as hopeless as her chance for happiness.

When was "The Unknown Quantity" released?

The Unknown Quantity was released in 1919.

Who stars in "The Unknown Quantity"?

The cast includes Corinne Griffith, Huntley Gordon, Harry Davenport, Jack McLean.